Code p2646 honda element

The code came up P2646 (rocker arm off or stuck). I took the info and drove about 20 more total miles and then it happened once again. I looked at the some info online and decided it might be VTEC oil pressure switch related as the code diagnostics said. SO I picked up one up and installed it.

Code p2646 honda element. 2003 Honda Element Sunset Orange Pearl 2WD Automatic 135K Miles I Love It! ... washed engine and now I am getting the P2646 code now, changed the oil, clean the vets screen, ordered a new Honda vtec solenoid, and oil pressure switch. after reading this thread all 20 pages I ordered new connectors from amazon. so now I know …

Jun 4, 2021 · Other Notes About P2646. On July 16, 2013, Honda released a factory service bulletin, SB- 10052884-2696, for the following models: 2003-2012 Honda Accord L4; 2002-2005 Honda Civic Si; 2002-2009 Honda CR-V; 2011 Honda CR-Z; 2003-2011 Honda Element; 2007-2011 Honda Fit; The bulletin addressed concerns about the code P2646 appearing on the ...

Jan 18, 2016 · Element 2003 / Engine Light Of + On / Code P2646 I have a Honda Element 2003 with over 200,000 miles. The engine light has been going on and off for a couple months. Mostly it's off. But when it was on, I got a code P2646. Two times I got it to go off by twisting the gas cap a full 3 turns. 2007 Honda Element LX 2WD MT 108000 miles ... As soon as I went over 3000 RPM for a seconds, the P2646 code would show up again. I called the local Honda dealer: the VTEC gasket was available for $4, the VTEC oil pressure switch for $85 and the whole VTEC assembly for $125.A subreddit for Honda Element enthusiasts! The Honda Element was a compact crossover SUV based on a modified CR-V platform, manufactured in East Liberty, Ohio and offered in front-wheel and all-wheel drive formats in the United States and Canada from model years 2003 through 2011. ... Code P2646 troublesHere's the history: Get P2646 (actuator arm stuck, bank 1) error: -Replace VTEC solenoid -Replace oil pressure switch -Clean front oil screen behind power steering pump -Replace coils and plugs -Problem goes away. Soon after, get another P2646 and P0302 (cylinder misfire): -take to shop, one of the coils i had replaced was bad (bought off ...Well i have the p2646 code and my car won't rev past 3000rpm. I bought a new vtec oil pressure switch for $72 and it didn't fix the problem :- ... Element Owners Club is your go to forum community to discuss your Honda Element, and get ideas from your next great trip to your next Honda Element Mod. Show Less . Full Forum Listing. …In this video I describe common issues and fixes for Honda 2.4L engines with a p2646. #honda #crv #p2646 #automotive #diagnosis #2.4 #2.4L #tips #tricks #tec...p2646 p2647 HELP ME. So my 2007 Honda Element has about 190k on it. I just bought it about 15k ago. The Check engine light came on and through the codes. I have read a bunch about this and we have since replaced the Varialbe timing solenoid, oil sensor, cleaned the filters, did an oil change and replaced all filters, cleaned the VTC strainer ...2788 posts · Joined 2017. #1 · Jun 24, 2019. After one year and 15K miles, I got my first (hopefully not major) issue with my 2003 EX Auto (now at 126K mile). Yes, the dreaded P2646 Code! : - (. My CEL came on and the engine will not rev past 3000 RPM; but seems to run smoothly otherwise. I got it checked at Auto Zone (don't have my own ...

Good morning, Quartz readers! Good morning, Quartz readers! France celebrates Bastille Day. This year’s military parade, which marks the 100th anniversary of America’s entry into W...Title Price Buy; Top Top: Castrol Edge 5W-40 A3/B4 Advanced Full Synthetic Motor Oil, 5 Quart Jug: Buy Now: Top Top: Dodge Ram 6.7L Cummins Diesel Fuel Filter Water Separator And Oil Filter Set for Dodge Ram 2013-2018 2500 3500 4500 5500 6.7L Turbo Diesel Engines 68197867AA 68157291AA 5083285AAWhen people say 2003 honda element code p2646, 2004 honda element p2646, 2005 honda element p2646, or 2006 honda element p2646, they prefer the same P2646 Code. It can happen to a lot of honda models. A P2646 diagnostic trouble code is an OBD code created by the Engine Control Module (ECM).Checking the screen, and replacement of the VTEC solenoid. some people call this a spool valve, camshaft actuator, or a VVT (variable valve timing) solenoid....Jul 18, 2023 · Honda vehicles commonly display the diagnostic trouble code P2646. It indicates that the oil pressure switch for the rocker’s arm is malfunctioning. Often referred to as the VTEC (Variable Valve Timing & Lift Electronic Control) switch, the Rocker arm oil pressure switch verifies oil pressure in the VVT mechanism. What does this mean? Code Tech Notes. The most common problem that can set the P2652 code is the engine oil. Before replacing any parts change the engine …

DTC P2646 is defined as “Rocker Arm Actuator A, Bank 1, Performance or Stuck Off.” Honda, Acura, and a couple other automakers use this definition. What are the common causes of code P2646? Depending on year, make, and model, DTC P2646 may have number of causes. Here are some of the most common.When you market a service instead of a product, you have to consider many more elements in your marketing approach. If you use the same approach to marketing a service that you wou...P2646: Your Engine’s Secret Alarm Bell. The P2646 code refers to the ‘A’ Rocker Arm Actuator System PerformanceStuck Off Bank 1. The Engine Control Module (ECM) controls the oil hydraulic circuit through the Rocker Arm Actuator. The Rocker Arm Actuator adjusts the engine’s valve timing through the variable valve timing (VVT) system.Learn how to fix ERROR CODE P2646 on your HONDA with the 2.4L engine.If this video is helpful, give it a "thumbs up" and consider subscribing to our channel....p2646 Engine code returning after obvious repairs. Have a 2003 honda element with 116,000 miles. It's in good shape except for this recurring issue. I have had my VTEC solenoid replaced twice since I bought this vehicle 1 month ago. I've had the oil flushed once between these two replacements.

Rods barber lounge.

P2626/p2647 codes helppp. My car started acting funny about a week ago. Started bucking and check engine light came on. Took it to run computer codes and p2646 and p2647 came up. I replaced the oil sensor switch for the first code. And then replaced the entire selonoid for the second code. I drove it about 100 miles and it ran better than it ...I'm new to the forum and appreciate everyone's experience. My '03 Element, 115K, has had a shudder at low-load 1600 rpm occasionally and now the check engine light has come on. Local shop computer says P2646. (The Honda dealer replaced the VTEC unit a couple of years ago when I had trouble accelerating, a different symptom than the current one).The Snake ransomware is believed to be the cause. Honda has confirmed a cyberattack that brought parts of its global operations to a standstill. The company said in a brief stateme...Feb 12, 2023 · What Does the Honda P2646 Code Mean? The P2646 DTC means that there’s a voltage discrepancy between the rocker arm oil pressure switch (VTEC oil pressure switch) and the hydraulic circuit, determined by the ECM/PCM command.

P2646, which is an OBD-II generic code for the engine control module (E... This is basically Part 2 in a conquest to solve P2646 for my brother's Honda Accord. P2646, which is an OBD-II generic ...Honda Element: 2005 honda element 2.4L code PO135 AF sensor 2005 honda element 2.4L code PO135 AF sensor S1 heater circuit malfunction, replaced o2 sensor, 2nd code P2646 VTEC pressure switch circuit voltage low, replaced with new switch update version still d …VTEC SOLENOID REPLACEMENT AND /OR JUST SCREEN REPLACEMENT. HONDA 2.4L ENGINE 4 CYLINDERS. SAME ON CRV, ELEMENT ACCORD CIVIC. CHECK ENGINE LIGHT. HESITATE AND...103 satisfied customers. I have a Vtec low pressure code p2646. The code is P2646. yes. I replaced the pressure switchsolenoid assembly with the little screen on the back left of the engine, and the pressure sensor located … read more. Ricardo Hohl. Auto Motive Instructor.I have a 2003 Element 2WD A/T with 146000 miles. I recently adjusted the valves and performed an oil change because it wouldn't idle properly and was throwing the dreaded P2646 code. The idle cleared up perfectly, found the exhaust valves were tight as hell. I removed the spool valve at this time and cleaned the screen, replaced it, P2646 ...2003 HONDA ELEMENT. 4 CYL. AWD. AUTOMATIC. 125,000 MILES. I have a 2003 Honda Element and it is throwing a P2646 code. I found that the majority of posts blame this to the Oil Pressure switch. I replaced it and cleared the code. Drove it around and the code came back and engaged the "limp" mode (2800 rpm limiter).P2646 Honda Code Definition: “A” Rocker Arm Actuator System Performance/stuck Off. P2646 codes indicate that the “A” rocker arm actuator control circuit for bank 1 has a performance issue or is stuck in the off position when detected by the Engine Control Module (ECM).Mar 5, 2018 · ALLDATA Diagnostic Bulletin. RELATED VEHICLES: 2003-2007 Accord, Element, CR-V 2.4L. SUMMARY: P2646 - VTEC Oil Pressure Switch Circuit Low Voltage; Between 2500 to 4000 RPM's while in drive, the VTEC system activates. The PCM/ECM activates the VTEC solenoid valve allowing engine oil pressure into the VTEC actuator.

The P2646 code is what we call a generic OBD-II code. The term stands for “Rocker Arm Oil Pressure Switch Circuit Low Voltage.” In less jargon-filled terms, your car’s brain, aka the Engine Control Module (ECM) , isn’t happy with the voltage it’s getting from a specific oil pressure switch.

Honda. Code: P2646. Definition: Rocker Arm Oil Control Valve A Stuck ON/OFF. Description: With the engine running at operating temperature, and the vehicle speed is a minimum of 12 mph (18 km/h) or more with the engine speed between 900-3,000 rpm the following conditions occur for 2 seconds or more. Condition 1: Rocker arm oil pressure sensor A ...Honda Element. Problems & Issues. VTEC problem: Code P2646 (also 2647, 2648, 2649) cel element 2003 engine engine light jumping limp mode malfuntion …p2646 p2647 HELP ME. So my 2007 Honda Element has about 190k on it. I just bought it about 15k ago. The Check engine light came on and through the codes. I have read a bunch about this and we have since replaced the Varialbe timing solenoid, oil sensor, cleaned the filters, did an oil change and replaced all filters, cleaned the VTC strainer ...Good morning, Quartz readers! Good morning, Quartz readers! France celebrates Bastille Day. This year’s military parade, which marks the 100th anniversary of America’s entry into W...chasing the code p2646 ... I had codes 2646 and 0011 on a 04 ex, went into limp mode over 3k rpms. ... The Honda Element was a compact crossover SUV based on a modified CR-V platform, manufactured in East Liberty, Ohio and offered in front-wheel and all-wheel drive formats in the United States and Canada from model years 2003 through 2011.March 8, 2021 by Jason. P1009 is a common Honda made vehicle trouble code. This code indicates the VVT advance control is malfunctioning, leaving the engine timing stuck advanced. Many Honda Element’s use something called a VTC actuator to control the camshaft timing of the engine. It works by using oil pressure to hydraulically move the ...176 posts · Joined 2017. #5 · Jan 2, 2022. I switch to 5-30 oil over 200k miles to prevent the oil pressure drop which CAN (not does) trigger a P2646 code with loose bearing clearances on higher mileage engines. That and clean oil, and clean screens, help 90% of the time. Mike1953.Element 2003 / Engine Light Of + On / Code P2646 I have a Honda Element 2003 with over 200,000 miles. The engine light has been going on and off for a couple months. Mostly it's off. But when it was on, I got a code P2646. Two times I got it to go off by twisting the gas cap a full 3 turns.

Sour sunset sherbet strain.

Mark golub scripps.

Jan 30, 2020 · P2646 Rocker Arm Oil Pressure Switch Circuit A Low VoltageCustomer brought in the car and thought the transmission was slipping and free reving. I diagnosed ... The VTEC system increases the amount of intake valve lift for increased power. It accomplishes this by turning a control solenoid 'ON' to allow oil pressure into the VTEC control passages to apply pins that will lock the intake rockers. When the oil pressure is present, the pressure switch signal will go high.Aug 11, 2019 · Well, my 2005 Element (212K miles) became infected with the P2646 VTEC malfunction code last week. CEL comes on and goes into limp mode (won't go over 2800 RPM). Turn the ignition off and back on, and it goes out of limp mode but usually comes back on soon. How to fix Honda code P2646 VTEC for free. You're going to want to try and clean the screens for the spool valve the VTEC valve and one other screen on the f...Jul 1, 2017 · G101 is the one on top right of the intake. Spliced a new wire and voila, no more voltage on pin 1. Back together, clear codes and test drive, P2646 the moment it hits 3k rpm. I didn't have the oil pressure tester to go through the procedure for P2646 so we ordered one and waited. About a year ago my 04 E (180,000miles)started bottoming about at 60mph. The engine light came on and the code was P2646, rocker arm stuck in off position. After some research I replaced the vvt solenoid and performed an oil change. The engine light went off and all was good. Fast forward to now, almost a year the the day and the same problem ...Honda Element: 2005 honda element 2.4L code PO135 AF sensor 2005 honda element 2.4L code PO135 AF sensor S1 heater circuit malfunction, replaced o2 sensor, 2nd code P2646 VTEC pressure switch circuit voltage low, replaced with new switch update version still d …Based on your description, it sounds like your Element is in "limp" mode. My best guess is it will show either a P2646 or P2647 code; which means a problem with the VTEC system. But it may have another code too. Let us know know the code and then we can help you diagnose the problem. Hope this helps.This is basically Part 2 in a conquest to solve P2646 for my brother's Honda Accord. P2646, which is an OBD-II generic code for the engine control module (ECM) detecting the 'A' rocker arm actuator control circuit for bank 1 has a …Common Repair Methods. The first step in fixing the P2647 code is to check the oil level and quality. Low oil pressure or dirty oil can cause the rocker arm actuator system to malfunction. If the oil level is low, add more oil and check for leaks. If the oil is dirty, it may be time for an oil change.Aug 4, 2012 · I have a 2003 Element 2WD A/T with 146000 miles. I recently adjusted the valves and performed an oil change because it wouldn't idle properly and was throwing the dreaded P2646 code. The idle cleared up perfectly, found the exhaust valves were tight as hell. I removed the spool valve at this time and cleaned the screen, replaced it, P2646 ... In today’s interconnected world, it has become increasingly important to stay connected with friends, family, and business associates across different geographic locations. One of ... ….

The most common problem that can set the P2652 code is the engine oil. Before replacing any parts change the engine oil with the factory recommend oil weight. There is a Factory Service Bulletin for the following Honda Models 2003-2012 Honda Accord L4 2002-2005 Honda Civic Si 2002-2009 Honda CR-V 2011 Honda CR-Z 2003 …This video is about Honda P2646 P2647 engine check code fix I-Vtec 2.4 Odyessy, Accord, Element, CRV. I go through what could be the cause of the fault code ...If you’ve recently found yourself staring at your Honda’s radio, unable to unlock it because you don’t have the code, don’t worry – you’re not alone. Many Honda owners face this fr...The dreaded P2646. I have a relatively high mileage 2007 EX-P 5MT 4WD with 259K. About 10K ago, I got the triple play of check engine and VSA lights and limp mode, Replaced the VTEC spool valve assembly with a (should have known better) aftermarket part. Flash forward to last week, about 7K miles later, same thing, deja vu.Aug 27, 2012 · Then the mechanic gets ill,stroke, he is now back at his shop, Element is put back toghther but mechanic now says engine is reving and he is getting following codes, PO507,P2279,P2646. He cant figure it out and really is not healthy enough to be working. The mechanic is not the same guy I took the car to as the stroke took its toll. 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...Cars that have timing chains instead of timing belts include the 2006 to 2016 Honda Civic, 2003 to 2016 Honda CR-V and Accord 2.4 and 2003 to 2011 Honda Element. Timing chains and ...P2646 Code Definition: “P2646: Rocker arm actuator A- Bank 1 Perf. or Stuck off.” or “A Rocker Arm Actuator System Performance or Stuck Off Bank 1.” “VTEC Oil Pressure Switch Circuit Low ...Here are some of the tools that jimthecarguy useshttps://www.amazon.com/shop/jimthecarguyIn This Video I Will Show You How To Replace The Solenoid Assembly O... Code p2646 honda element, What causes the P2646 code? The ECM detects a problem in the rocker arm system for bank 1. The oil passages are clogged or the oil pressure is not up to specifications. The rocker arm actuator is clogged with sludge or is sticking intermittently. The engine may have excessive sludge binding the rockers from moving or the oil is too thick., Jan 7, 2020 · P2646 is a common diagnostic trouble code that affects Honda made vehicles, including the Accord. This code indicates that there is an issue with rocker arm oil pressure switch. The Rocker arm oil pressure switch verifies the correct oil pressure in the Variable Valve Timing (VVT) mechanism, and is often referred to as the VTEC (Variable Valve ... , chasing the code p2646 ... I had codes 2646 and 0011 on a 04 ex, went into limp mode over 3k rpms. ... The Honda Element was a compact crossover SUV based on a modified CR-V platform, manufactured in East Liberty, Ohio and offered in front-wheel and all-wheel drive formats in the United States and Canada from model years 2003 through 2011., Diagnostic trouble code (DTC) P2647 stands for “‘A’ Rocker Arm Actuator System Stuck On.”. Engines with VTEC utilize a rocker arm actuator system to vary valve lift using two camshaft profiles (high and low RPM). The P2647 code can be triggered if the PCM detects a discrepancy between the actual state of the oil pressure switch and its ..., The codes I get are P2646 and P2647 - codes related to the ... Toaster Entry #20: I keep having this issue where the car goes into limp mode, after heavy rains. The codes I get are P2646 and P2647 ..., Took the car to auto zone, retrieved the codes: -U0107 TAC MODULE COMMUNICATION (indicates the PCM did not receive a message from the throttle actuator control module within a predetermined period of time) -P2646 VTEC OIL PRESSURE SWITCH CIRCUIT MALFUNCTION., Service Bulletin 13-021. (g)HONDA Service Bulletin 13-021. September 16, 2015 49031-02409 Version 3. MIL Comes ON with DTC P2646/P2651 or P2647/P2652. (Supersedes 13-021, dated February 28, 2013, to revise the information highlighted in yellow) AFFECTED VEHICLES Year Model Trim VIN Range 2003-12 Accord L4 ALL ALL 2012-13 Civic ALL …, What causes the P2646 code? The ECM detects a problem in the rocker arm system for bank 1. The oil passages are clogged or the oil pressure is not up to specifications. The rocker arm actuator is clogged with sludge or is sticking intermittently. The engine may have excessive sludge binding the rockers from moving or the oil is too thick., Honda Element: 2005 honda element 2.4L code PO135 AF sensor 2005 honda element 2.4L code PO135 AF sensor S1 heater circuit malfunction, replaced o2 sensor, 2nd code P2646 VTEC pressure switch circuit voltage low, replaced with new switch update version still d …, P0118 *Engine Coolant Temperature (ECT) sensor circuit high input. P0119 Engine coolant temperature circuit intermittent. P0120 Throttle position sensor/switch A circuit malfunction. P0121 Throttle position …, Code P1009. I have gotten a check engine light twice in a few days, cleared one and it came back on again. Well it was code P1009. Witch means VTC actuator failure. So honda checked code and replaced VTEC valve switch assymbly. Then code came back up on HDS test for them witch ended up being a valve that was sticking and a strainer …, Bought 2003 element. Check engine was on and code was P2646. The car didn’t want to go over 3500 rev. I replaced screens on solenoids and one extra under the lid. Problem solved. Traveled 800 miles in 2 days and on highway code popped up again., Welcome, Farabundo. Search term "P2646" returns this relevant thread: VTEC problem: Code P2646 (also 2647, 2648, 2649), What’s weird is that the 03 crv does not have a p2646 code, it rather a p1259 vtec malfunction code; whereas the 03 element does have a p2646 Code. And the crv manual I looked at lists 02-03 models. ... crvownersclub.com is an independent Honda enthusiast website owned and operated by VerticalScope Inc. Content on …, P2646 for the A rocker arm actuator not performing. Was not in limp mode, just sluggish. Went and got the oil changed, reset, went away for an hour and came back. A day later I pick up a brand new OEM valve spool assembly from a Honda dealership. Had it put on by someone I trust at a local service center. Code was cleared, all was well., May 10, 2021 · I just bought a 2006 Honda Element EX-P AWD with 158k miles. Absolutely love the car but am dealing with the much elusive p2646 code. Already changed the oil, oil filter, oil sensor, and the entire VTEC solenoid (with the correct part straight from Honda), but the car keeps bucking at 3000 rpm. , P2646: Your Engine’s Secret Alarm Bell. The P2646 code refers to the ‘A’ Rocker Arm Actuator System PerformanceStuck Off Bank 1. The Engine Control Module (ECM) controls the oil hydraulic circuit through the Rocker Arm Actuator. The Rocker Arm Actuator adjusts the engine’s valve timing through the variable valve timing (VVT) system. , You might not care about VTEC, but the engine does; with the P2646 code set, the engine won't accelerate past about 3000 rpm which doesn't make the vehicle very drivable. Minimum oil pressure at idle is supposed to be 10 psi; 44 psi at 3000 rpm; so you're good there at least., The Honda Element was a compact crossover SUV based on a modified CR-V platform, manufactured in East Liberty, Ohio and offered in front-wheel and all-wheel drive formats in the United States and Canada from model years 2003 through 2011. ... ADMIN MOD P2646 Code resolved Driving to work yesterday and I started experiencing some stuttering and ..., The codes I get are P2646 and P2647 - codes related to the ... Toaster Entry #20: I keep having this issue where the car goes into limp mode, after heavy rains. The codes I get are P2646 and P2647 ..., 2788 posts · Joined 2017. #1 · Jun 24, 2019. After one year and 15K miles, I got my first (hopefully not major) issue with my 2003 EX Auto (now at 126K mile). Yes, the dreaded P2646 Code! : - (. My CEL came on and the engine will not rev past 3000 RPM; but seems to run smoothly otherwise. I got it checked at Auto Zone (don't have my own ..., Joined Oct 19, 2020. 4 Posts. #492 · May 13, 2021. I had the P2646 code problem last week. Currently at 114,000 miles on a 2008 SC AT. Diagnosed as rocker arm control system 'A' Bank 1 stuck off and switch circuit low voltage, needs switch. So the switch was replaced and so far so good., Aug 9, 2023 · Title Price Buy; Top Top: Castrol Edge 5W-40 A3/B4 Advanced Full Synthetic Motor Oil, 5 Quart Jug: Buy Now: Top Top: Dodge Ram 6.7L Cummins Diesel Fuel Filter Water Separator And Oil Filter Set for Dodge Ram 2013-2018 2500 3500 4500 5500 6.7L Turbo Diesel Engines 68197867AA 68157291AA 5083285AA , Are you looking to create your own website from scratch? If so, using HTML code is a great way to get started. Before diving into writing HTML code, it’s important to understand th..., The VTEC system increases the amount of intake valve lift for increased power. It accomplishes this by turning a control solenoid 'ON' to allow oil pressure into the VTEC control passages to apply pins that will lock the intake rockers. When the oil pressure is present, the pressure switch signal will go high., When considering the Honda Element’s reliability, it’s important to grasp its potential issues. Expect common oil leak concerns like the Variable Timing Control Solenoid gasket.. Keep an eye on low oil pressure triggering code P2646 and make sure regular oil changes. Address key responder problems with a check of battery and physical …, Here are some of the most common Honda P2646 causes. Wrong motor oil viscosity; Clogged oil passages; Sludge clogs rocker arm actuator; Clogged oil control screener; Malfunctioning VTEC oil …, Hey, everyone! I just bought a 2006 Honda Element EX-P AWD with 158k miles. Absolutely love the car but am dealing with the much elusive p2646 code. Already changed the oil, oil filter, oil sensor, and the entire VTEC solenoid (with the correct part straight from Honda), but the car keeps bucking at 3000 rpm. ... VTEC problem: Code …, In today’s interconnected world, it has become increasingly important to stay connected with friends, family, and business associates across different geographic locations. One of ..., A P2646 code is an OBD code for the Engine Control Module (ECM) detecting that the “A” rocker arm actuator control circuit for bank 1 has a performance issue or is stuck in the off position. , If your Honda Accord is overheating, the cause could be any of the vital elements of the cooling system. Those elements are the heat exchanger, fan, water pump, thermostat and cool..., Had intermittent code P2646 and tried everything. Cleaned the front screen, replaced spool valve assembly, changed oil, tried 10W-30 with OEM Honda filter. Nothing worked., P2646: Your Engine’s Secret Alarm Bell. The P2646 code refers to the ‘A’ Rocker Arm Actuator System PerformanceStuck Off Bank 1. The Engine Control Module (ECM) controls the oil hydraulic circuit through the Rocker Arm Actuator. The Rocker Arm Actuator adjusts the engine’s valve timing through the variable valve timing (VVT) system.