Honda trouble code p1399

Mar 5, 2021 · P1399 is a Honda specific diagnostic trouble code. It means that more than one cylinder is misfiring, and is most commonly caused by valves that are out of adjustment, or ignition issues. P1399 Quick Facts

Honda Civic Gen Tech and Builds / Show Offs. ... Trouble code: P1399? Thread starter kandyapple_si; Start date Jan 14, 2007; kandyapple_si New Member. 5+ Year Member.P1399 Is A Honda Specific Diagnostic Trouble Code. The auto repair's diagnosis time and labor rates. Web 0answers honda odyssey 2002, code p0303, p0305, p0306, read full answer be the first to answeroct 07, 2013 • cars & trucks Web web unsolved problems for 2002 honda accord code p1399 question.You will get the P0301-P0304 codes on your OBDC reader when you plug it in (if actually errors), but will only find the P1399 if you select Honda as the manufacturer. Just got these errors today on my CRV 2000.First off, I have a CEL code p1399 My car is fine when it's cold but when it warms up, the CEL starts flashing indicating a misfire. I'm sure it's intermittent since turning off the car and restarting it will take it back to a solid CEL. Not only that, I can't feel the misfire at all. It seems to drive fine with lots of power and everything.To fix the automobile fault code P1399, follow these steps: 1. Check the possible causes mentioned above. 2. Visually inspect the wiring harness and connectors related to the fault code. 3. Look for any damaged components. 4. Check for broken, bent, pushed out, or corroded pins in the connectors.If you own a Honda vehicle and have ever encountered a situation where your radio suddenly stopped working and displayed a message asking for a security code, you are not alone. Th...

P1399 trouble code on a 2004 Honda Odyssey. Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system … read moreCode p1399 is brand specific and for Honda it usually means random miss. The code 505 could be the idle control valve or a vac leak. The computer can not control idle speed by using the valve. The miss codes mean the cylinders are not producing power when they should be. Which may or may not be ignition. It could also be fuel or … The trouble code is coming up po302 and p1399 The first code is easy misfire #2 cylinder the second code is non specific for the honda listing, The OBD II scanner says ignition control, manufacture pending, does this mean honda is waiting to update their code list? Mar 7, 2021 · P1399 is a Honda specific diagnostic trouble code. It means that more than one of your CR-V's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out. Feb 18, 2016 · Recommended Services. On Honda vehicles the OBD code p1399 indicates that there is a random misfire occurring in the engine. In most cases a valve adjustment will correct this issue, however a blocked passage in the EGR (Exhaust Gas Recirculation) system can also generate this same code. Valve adjustments should be performed on Honda vehicles ... Codes P0300, 0301, 0302, 0304 & pending P1399 & P1456. So I originally posted because my pilot w/ 152k (& fresh oil change) started to make a strange valvetrain ticking noise. After much research, it looked like my timing chain tensioner was leaking so I …

P1399 is a Honda specific diagnostic trouble code. It means that more than one cylinder is misfiring, and is most commonly caused by valves that are out of adjustment, or ignition issues. P1399 Quick FactsP1399 - Honda Accord 2002 EX V6. 0 votes . 1.3k ... 2017 by OBDIITech (8.2k points) We can find any information on the service manual for that code. Related questions +1 vote. 2 answers 466 views. How can I fix the code P2631 on my ... 2012 Honda Accord EX 3.5L V6 with engine code P0175, what is the meaning? asked Dec 6, …The P1399 code is a diagnostic trouble code (DTC) that indicates a misfire in one or more cylinders of an engine. It can occur in both gasoline and diesel engines, and it is commonly found on Honda vehicles. When the powertrain control module (PCM) detects a misfire, it will set the P1399 code and turn on the check engine light.x0ml Discussion starter. 4 posts · Joined 2012. #1 · May 14, 2012. I have a 2002 Odyssey getting OBD Codes P0300, P0301, P0303, P0304, P0305, P0306, and P1399. The engine just starting running horribly rough overnight. The OBD code reader says 'Random/Multiple Cylinder Misfire detected. What would cause all they cylinders to …

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P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Pilot's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out.P1399. Im stumped on this code, It's not even in the book, The wife called me last night and said the Honda was running ruff , hardley pull itself down the road, took her almost an hour to get home. Can any of yall give me any information about what im looking for. The code P1399 would be nice to know what im looking for.2004 honda pilot ex, 238,000 miles. P1399 code, replaced coils, plugs, PCV valce, EGR, and cleaned EGR ports; code still remains. Vehicle under load at ~4000-4500 rpm tcheck engine light flashes and code p1399. Mechanic's …If you own a Honda vehicle in Canada, you may have encountered the frustrating situation of needing to input a radio code to unlock your car’s audio system. Honda radio codes are u...1. What exactly is the P1399 code? The P1399 code is a Honda-specific trouble code signaling a random cylinder misfire. This misfire can affect the overall performance of your engine, leading to issues like reduced fuel efficiency and increased emissions. 2. How will I know if my vehicle has the P1399 issue?Mar 7, 2021 · P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Accord's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out.

March 7, 2021 by Jason. P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Accord’s cylinders is misfiring (maybe just one, more on that …2.0L. 4 CYL. AWD. AUTOMATIC. 264,000 MILES. Getting a rough idle problem after the car has warmed up and is idling. Engine sputters and almost quits. Getting trouble code p1399 (random misfire) sometimes and once I got trouble codes for cylinders one to four misfiring. Tried changing plugs but it did not help.There are a few steps you can take to diagnose the P0300 code in your Honda Accord without taking it to a mechanic: 1. Check for loose or damaged spark plugs: Inspect the spark plugs and their wires for any signs of wear, damage, or loose connections. Replace any faulty spark plugs or wires. 2.Description. When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position ( CKP) sensor signal to vary, the Engine Control Module ( ECM) can determine that a misfire is occurring, and the Diagnostic Trouble Code (DTC) will be set. P1399 Acura Code - Random Cylinder Misfire Detected.Recommended Services. On Honda vehicles the OBD code p1399 indicates that there is a random misfire occurring in the engine. In most cases a valve adjustment will correct this issue, however a blocked passage in the EGR (Exhaust Gas Recirculation) system can also generate this same code. Valve adjustments should be performed on Honda vehicles ...The Honda Civic Hybrid System - The Honda Civic hybrid system has some unique features. Learn all about the Honda Civic Hybrid system at HowStuffWorks. Advertisement If ever two au...P1399 trouble code on a 2004 Honda Odyssey. Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system is clean, EGR system has been cleaned, and valve clearance has been reset.Honda Trouble Code P1399 Molecular Infection Biology Jörg Hinrich Hacker 2002-10-03 This comprehensive volume focuses on molecular methods and principles of prokaryotic and eukaryotic pathogens. The authors present the molecular and cellular aspects by focusing on the interactions between pathogenic microorganisms and their hosts.OBD-II Trouble Codes Help Site. Skip to content. Quick links. FAQ; OBD Codes Forum. OBD Codes Help. Honda, Acura. 2000 honda crv code p1399 and p0304. 1 post • Page 1 ... Joined: Fri Jun 21, 2019 8:05 am Vehicle: 2000 honda crv. 2000 honda crv code p1399 and p0304. Post by Bblackman98 » Fri Jun 21, 2019 8:09 am. I know …P1399 trouble code on a 2004 Honda Odyssey. Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system …Recommended Services. On Honda vehicles the OBD code p1399 indicates that there is a random misfire occurring in the engine. In most cases a valve adjustment will correct this issue, however a blocked passage in the EGR (Exhaust Gas Recirculation) system can also generate this same code. Valve adjustments should be performed on Honda vehicles ...2001 ex p0300, p0302, p0304, p1399. 2001 honda accord 3.0l code p1676Motor honda accord 2001 2.3 repuestos originales 2001 honda crv code p1399Honda accord code. I am having trouble locating the eld for my 99 accord ex v6 2 doorAccord repuestos 1999 honda accord v6 loss of power diagnosis/fixAccord p1676 …

Nov 14, 2016 · What Does Code P1399 Mean? OBD II fault code P1399 is a manufacturer specific code, and on some applications, this code is defined as “Glow Plug Circuit High Side, High Input”, and is set when the PCM (Powertrain Control Module) detects an abnormal input voltage in the “high side” of the glow plug control circuit on diesel engines.

2004 P1399 (multiple cylinder misfire) code with diagnostics. I have a 2004 with 288K miles on it and this is the first time my van has set a code since I got it at 40K miles in 2007. Though I have already determined the cause of the code I thought I would share my symptoms along with how I diagnosed it. Some background.May 12, 2020 ... QUICK AND EASY APPLIANCE DIY REPAIR VIDEOS – SAVE BIG $$$ BY FIXING IT YOURSELF✓ ✨ If the video was helpful, remember to give it a Thumbs ...First off, I have a CEL code p1399 My car is fine when it's cold but when it warms up, the CEL starts flashing indicating a misfire. I'm sure it's intermittent since turning off the car and restarting it will take it back to a solid CEL. Not only that, I can't feel the misfire at all. It seems to drive fine with lots of power and everything.I have a Honda CRV 2001, Trouble Codes: P0301, P0302, P0303, P0304, P1399. I will appreciate any recommendation from - Answered by a verified Mechanic for Honda We use cookies to give you the best possible experience on our website.Jan 15, 2024 · There are several possible causes for Honda code P1399, including: Ignition system problems such as faulty spark plugs, ignition coils, or spark plug wires. Fuel system issues such as clogged fuel injectors or a malfunctioning fuel pressure regulator. < Engine mechanical problems like low compression or a vacuum leak. Code P1399 Description. When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position sensor signal to vary, the Engine Control Module can determine that a misfire is occurring, and the Diagnostic Trouble Code (DTC) will be set. P1399 Code - Random Cylinder Misfire …Code P1399 Honda Description. When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position sensor signal to vary, the Engine Control Module can determine that a misfire is occurring, and the Diagnostic Trouble Code (DTC) will be set.Labor: 1.0. To diagnose the P1399 Acura code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.Good luck! P1399 is a Acura specific diagnostic trouble code. It means that more than one of your MDX's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out.2000 Honda civic Ex D16y8 engine. Having trouble with check engine diagnosis. I have the following codes. p1399, P0301, ... 2001 honda CRV P1399 Code, Previously had ...

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OBD code P1399. On Honda vehicles the OBD code p1399 indicates that there is a random misfire occurring in the engine. In most cases a valve adjustment will correct this issue, however a blocked passage in the EGR (Exhaust Gas Recirculation) system can... Read more. Engine Light/ Maintenance Required/ TCS Light on.Overview of the causes and fixes of a Honda with a P1399 OBDII Engine Code, Random Cylinder Misfire Detected.Read more information here: https://www.backyard...Honda Trouble Code P1399 Molecular Infection Biology Jörg Hinrich Hacker 2002-10-03 This comprehensive volume focuses on molecular methods and principles of prokaryotic and eukaryotic pathogens. The authors present the molecular and cellular aspects by focusing on the interactions between pathogenic microorganisms and their hosts.There are a few steps you can take to diagnose the P0300 code in your Honda Accord without taking it to a mechanic: 1. Check for loose or damaged spark plugs: Inspect the spark plugs and their wires for any signs of wear, damage, or loose connections. Replace any faulty spark plugs or wires. 2.After the faults have been rectified, trouble codes can be erased by using a Scan Tool connected to the data link connector (DLC) or as follows: Switch ignition OFF. Remove clock/backup fuse (7.5A) from RH fascia fusebox for 10 seconds minimum [3] Reinstall fuse. Repeat checking procedure to ensure no data remains in ECM fault memory.5,081 Answers. P1399- Manufactures control Ignition system OR Misfire. If only one of your cylinders was misfiring, you probably would be getting a more specific code than P1399. Also check the distributor rotor along with the cap and coils and wires; the EGR valve to make sure it doesn't leak; your fuel pressure which can cause random …P1399 trouble code on a 2004 Honda Odyssey. Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system … read moreI don't mean to hijack this post but I just finished experiencing the same thing on my 04 honda odyssey. Here are the codes I am getting. I have an Android phone along with an OBDII scanner. These are the fault codes I received. P0302 - Powertrain Cylinder 2 Misfire Detected P0303 - Powertrain Cylinder 3 Misfire Detected P0304 - PowertrainCode P1399 Description. When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position sensor signal to vary, the Engine Control Module can determine that a misfire is occurring, and the Diagnostic Trouble Code (DTC) will be set. P1399 Code - Random Cylinder Misfire …Honda CR-V Owners Club ForumsGood luck! P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Jazz's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out. ….

When is the code detected? The control module monitors the crankshaft speed and has detected a misfire condition. Possible symptoms - Engine Light ON (or Service Engine Soon Warning Light) - Lack/loss of power - Hard start - Engine hesitation. P1399 Honda Description When a misfire occurs, engine speed will fluctuate. If the engine speed ...Mar 7, 2021 · P1399 is a Honda specific diagnostic trouble code. It means that more than one of your S2000's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out. Code p1399 is brand specific and for Honda it usually means random miss. The code 505 could be the idle control valve or a vac leak. The computer can not control idle speed by using the valve. The miss codes mean the cylinders are not producing power when they should be. Which may or may not be ignition. It could also be fuel or …P1399 trouble code on a 2004 Honda Odyssey. Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system is clean, EGR system has been cleaned, and valve clearance has been reset.The 1969 Honda Dream 305 motorcycle combined power with convenience. Read about this important Honda and see pictures of a real dream machine. Advertisement The 1969 Honda Dream 30...The P1399 code is a generic OBD-II code, which means that it is used by all vehicle manufacturers. The P1399 code can be caused by a variety of issues, including faulty spark plugs, ignition coils, fuel injectors, or even a clogged fuel filter. Additionally, low fuel pressure or a vacuum leak can also cause a misfire.Codes P1399, P0505, P0325. I just replaced the engine in a 2002 Accord with a Vtech 4cyl. It runs fine at idle. When it's cold it fluctuates RPMS when you hold it steady around 2000 rpms. It will fluctuate between 1000 and 2000. It threw code P0505 first so I took off the IACV and replaced it.OBD II fault code P0301 is a generic code that is defined as, “P0301 – “Cylinder 1 – misfire detected” and is set when the PCM (Powertrain Control Module) detects misfires on cylinder #1. In technical terms, a “misfire” on any given cylinder occurs when the air/fuel mixture in the affected cylinder does not combust, or only ...P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Pilot's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out. Honda trouble code p1399, 2004 honda pilot ex, 238,000 miles. P1399 code, replaced coils, plugs, PCV valce, EGR, and cleaned EGR ports; code still remains. Vehicle under load at ~4000-4500 rpm tcheck engine light flashes and code p1399. Mechanic's …, 02 Honda Odyssey P1399 Random Misfire - What test have I missed? Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to …, LG washers are known for their efficiency and reliability, but like any other appliance, they can encounter issues from time to time. One of the ways LG washers communicate problem..., Aug 28, 2007 · P1399 trouble code on a 2004 Honda Odyssey. Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system … read more , Good luck! P1399 is a Acura specific diagnostic trouble code. It means that more than one of your MDX's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out., SOURCE: i have a 2000 honda. right off all data p1399 is a random misfire code and honda has reported for various models that this could be caused by clogged egr ports, in addition there is the possibility that the valve clearance spec may be out of range.check plugs and wires first and proper gap. Posted on Aug 09, 2011, Mar 5, 2021 · P1399 is a Honda specific diagnostic trouble code. It means that more than one cylinder is misfiring, and is most commonly caused by valves that are out of adjustment, or ignition issues. P1399 Quick Facts , suprchrgedsi. 53 posts · Joined 2003. #7 · Feb 16, 2006. REPLY TO ENGINE CODES PO301-P0304 P1399 MISFIRE RANDOJM MISFIRE. THESE CODE ARE FROM AN ACUTRON CHEAPY OBD2 SCANNER I TRIED THE CAP ROTOR AND INJECTOR BECAUSE IT SEEMED I HAD A DEAD CYLINDER EVERYONE WAS LIKE YOUR GONNA HAVE TO REBUILD YOUR HEAD WELLL IN MY LAST ATTEPMT AT FIXING IT I ..., If you live with ADHD, you may find that falling asleep — and staying asleep — can be a challenge. Here’s why and how to cope. Sleep is a vital part of life, but if you live with a..., No spark. Diagnosed a bad distributor. Installed a new aftermarket distributor and it started right up. After a few minutes the check engine light came on. Code was for low voltage from the o2 sensor 1. watched the scanner for the sensor to be functioning and it was. installed a new o2 sensor and that code went away but now it has the p1399 ..., P1399 This vehicle came into the school for a random misfire, with a code I never saw before P1399, unable to identify the misfire. There are few components ..., P1399 is a Honda specific diagnostic trouble code. It means that more than one of your HR-V's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out, The first symptom to expect from a P1399 code is the check engine light illuminating on your dashboard to indicate an issue exists. As far as physical symptoms, you can expect to have trouble ..., 2004 P1399 (multiple cylinder misfire) code with diagnostics. I have a 2004 with 288K miles on it and this is the first time my van has set a code since I got it at 40K miles in 2007. Though I have already determined the cause of the code I thought I would share my symptoms along with how I diagnosed it. Some background., eaglemtn. 76 posts · Joined 2002. #8 · Mar 11, 2014. Here's some info on my experience with a misfiring situation. 2002 Odyssey - The check engine light came on with codes P0300, P0301 - P0306, P1399. The engine would stutter at various times - at idle, when accelerating - would come and go., P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Pilot's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out., Have you ever experienced getting into your car, turning on the ignition, and realizing that your Honda radio is locked? It can be quite frustrating, especially if you rely on your..., P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Accord's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out., Dec 17, 2008 · P1399 trouble code on a 2004 Honda Odyssey. Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system … read more , Craig92DA9. 210 posts · Joined 2005. #2 · Feb 27, 2012 (Edited) A flashing check engine light indicates a catalyst damaging misfire. Honda does not supply a diagnostic flow chart for code P1399, it is a random misfire code and Honda/Acura has reported for various models that this could be caused by clogged EGR ports (if aplicable)., 1. What exactly is the P1399 code? The P1399 code is a Honda-specific trouble code signaling a random cylinder misfire. This misfire can affect the overall performance of your engine, leading to issues like reduced fuel efficiency and increased emissions. 2. How will I know if my vehicle has the P1399 issue?, Aug 28, 2007 · P1399 trouble code on a 2004 Honda Odyssey. Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system … read more , Jan 14, 2007 · Honda Civic Gen Tech and Builds / Show Offs. ... Trouble code: P1399? Thread starter kandyapple_si; Start date Jan 14, 2007; kandyapple_si New Member. 5+ Year Member. , If your check engine light on your Honda with a 3.5L is on with a P1399 code and a bunch of misfire codes, you better check this out! P1399 means multiple c..., Trouble Codes. P Codes (Powertrain) ... HONDA ACCORD P CODES (POWERTRAIN) P1300 - P1399 ... My Wife's 2002 Honda Accord Is Throwing A Code P1381 That Is Dicribed As A ... , Labor: 1.0. To diagnose the P1399 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour., Mar 7, 2021 · P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Pilot's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out. , I have a 1997 Civic DX (D16y7). Stock except exhaust. Throwing code P1300 and P1399. I just put a new distributor in it, recent COMPLETE tune up. Plugs, Wires, Cap, Rotor... What it will do is run perfectly, and then lose all power, and then it will resume perfect power, and lose it all again. It does this at idle, and driving., P1399 trouble code on a 2004 Honda Odyssey.Vehicle has 293,000 miles. TPS sensor, thermostat, coolant temp sensor, idle air control sensor, and mass air flow sensor have all been replaced, Cat system is clean, EGR system has been cleaned, and valve clearance has been reset., The trend is not limited to metropolitan areas. Despite the poor economic sentiment in India—that has caused massive layoffs and steep pay cuts—Indians are more willing than before..., p1399 is a random misfire code and honda has reported for various models that this could be caused by clogged egr ports, in addition there is the possibility that the valve clearance spec may be out of range.check plugs and wires first and proper gap. 2 answers. , On the inside, the Civic offers comfortable seating for five passengers with ample cargo space in the trunk. Safety features include dual front airbags, anti-lock brakes (ABS), and side curtain airbags as standard equipment. The Honda Civic 2000 also has an available P1399 code indicating an emissions failure due to faulty oxygen sensors or ..., Mar 7, 2021 · P1399 is a Honda specific diagnostic trouble code. It means that more than one of your Civic's cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out.