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What is p2646 A rocker arm actuator system or stuck off bank 1

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

ahmed_mmm
  • 72 Answers

SOURCE: Why is my check engine light on 05 civic

the actuator is faulty and you could clean it, reset ECU error and check again

Posted on Sep 17, 2009

  • 1 Answer

SOURCE: Code P2646

Change your oil

Posted on Dec 15, 2009

  • 236 Answers

SOURCE: Hond engine code P2646 Rocker Arm Bank 1 Stuck Off

sounds like the timing belt jumped

Posted on Dec 31, 2009

honeymokey
  • 3113 Answers

SOURCE: 2007 Honda Pilot service code

Could be a bad oil pressure sensor on bank one or low oil level ,or incorrect oil and filter.

Posted on Aug 13, 2011

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2003 Honda Accord engine code p2646 engine will not rotate 360 but stops.when turned in reverse by hand starter will turn then get stuck and will not turn forward. What is possible causes? Locked?


code p 2646 refers to rocker arm actuator A bank 1---performance problem or actuator stuck off=== causes wiring--- rocker arm actuator
discuss the problem with a service dealer shop or an accredited service shop that has experience on your make of vehicle
with rocker arm problems , to stop rotation it may be bottoming out on a valve spring and not letting the cam shaft turn .
talk with a shop for a proper diagnosis and quote

Dec 22, 2016 | Honda Cars & Trucks

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Error Code p2646


Error Code p420. Drank weed. High. Help?

Sep 27, 2016 | Ford Cars & Trucks

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Honda accord


honda accord code p2646=

rocker arm actuatar system performance or stuck off

Aug 17, 2012 | Honda Accord Cars & Trucks

1 Answer

P 2647"A" Rocker Arm Actuator


Your going to need a air pressure regulator or better yet if the ECM found fault price it and replace it
  1. Start the engine, and let it run for 5 minutes, then turn the ignition switch to LOCK (0).
  2. Remove the cylinder head cover.
  3. Set the No. 1 piston at top dead center (TDC).
  4. Move the intake secondary rocker arm A for the No. 1 cylinder. The secondary rocker arm A should move independently of the secondary rocker arm B.
    1. If the intake secondary rocker arm A moves freely, go to step 5.
    2. If the intake secondary rocker arm A does not move, remove the secondary rocker arms as an assembly, then check that the pistons in the secondary rocker arms move smoothly. If any rocker arm needs replacing, replace the secondary rocker arms as an assembly, then retest.
    3. Repeat step 4 on the remaining intake secondary rocker arms with each piston at TDC. When all the secondary rocker arms pass the test, go to step 6.
    4. Check that the air pressure on the shop air compressor gauge indicates over 400 kPa (4.0 kgf/cm2, 57 psi).
    5. Inspect the valve clearance.
    6. Install a 10 x 1.0 mm adapter to the inspection hole, then connect the air pressure regulator
  5. With the specified air pressure applied, move the intake secondary rocker arm A for the No. 1 cylinder. The secondary rocker arm A and secondary rocker arm B should move together. If the intake secondary rocker arm A does not move, remove the secondary rocker arms as an assembly, and check that the pistons in the secondary rocker arms move smoothly. If any rocker arm needs replacing, replace the secondary rocker arms as an assembly, then retest.
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Aug 23, 2011 | Honda Accord Cars & Trucks

1 Answer

2007 Honda Pilot service code P2647 A rocker arm actuator control system stuck on (bank 1) what does tis mean


Could be a bad oil pressure sensor on bank one or low oil level ,or incorrect oil and filter.

Aug 13, 2011 | 2007 Honda Pilot

2 Answers

Why is my check engine light on 05 civic


the actuator is faulty and you could clean it, reset ECU error and check again

Sep 16, 2009 | 2005 Honda Civic

2 Answers

Code P2646


I believe it has to do with the vtec functioning. At certain time in accleration during rpm range the valve timing changes and it is probably a sensor that detects rpms. you need to check with someone else though because I am not an expert on hondas, just understand the principle of how it works.

Oct 22, 2008 | 2004 Honda Civic

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