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p2647-rsx bucks when accelerating

Customer Question
p2647-rsx 'bucks' when accelerating...
p2647-rsx 'bucks' when accelerating
Submitted: 8 years ago.Category: Acura
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Answered in 3 minutes by:
6/27/2010
Mechanic for Acura: Tim West, ASE Certified Technician replied 8 years ago
Tim West
Tim West, ASE Certified Technician
Category: Acura
Satisfied Customers: 4,638
Experience: ASE certified Service Manager
Verified
Thanks for visiting Just Answer,
This is usually a problem with the VTEC oil pressure switch or solenoid.

Locate the Variable Timing Electronic Control (VTEC) pressure switch on the end of the cylinder head. Acura has had problems with the VTEC oil pressure switch.
The VTEC oil switch is normally closed, and grounds the reference voltage from the Engine Control Module (ECM) on the Blue/Black (BLU/BLK) wire. If the code sets at idle-2500 RPM and the Brown/Yellow wire has a good ground, then suspect a faulty VTEC oil pressure switch.
At approximately 2500-4000 RPM and when driving the vehicle, the VTEC system should turn on. To turn on the system, the ECM energizes the VTEC Solenoid valve and it allows oil pressure into the intake valve rocker arms, the oil pressure opens the VTEC oil pressure switch so the Engine Control Module (ECM) can verify that the VTEC did turn on correctly.
The code will set at idle to 2500 RPM if the reference voltage is not grounded. The code will set above 2500-4000 RPM if the VTEC oil switch does not open.
If the code sets at 2500-4000 RPM or higher, the problem can be a low oil level or pressure, or a malfunction in the VTEC assembly.



Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) Removal/Installation

  1. Remove the rocker arm oil control solenoid (VTEC solenoid valve) assembly.


  1. Remove the rocker arm oil pressure switch (VTEC oil pressure switch) (A).
  2. Install the switch in the reverse order of removal with a new O-ring (B).


Rocker Arm Oil Control Solenoid (VTEC Solenoid Valve) Assembly Removal/Installation


  1. Disconnect the rocker arm oil control solenoid (VTEC solenoid valve) connector, the rocker arm oil pressure switch (VTEC oil pressure switch) connector and the bolts (A).
  2. Remove the cover (B), and the rocker arm oil control solenoid (VTEC solenoid valve) assembly (C).
  3. Install the valve in the reverse order of removal with a new solenoid valve filter (D).

 


Tim West
Tim West, ASE Certified Technician
Category: Acura
Satisfied Customers: 4,638
Experience: ASE certified Service Manager
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Customer reply replied 8 years ago
Hi,Tim.Thanks for the usefull information.Could you answer this question for free ?How much should this cost to fix?Forget the dealership,I'm not giving those lot weasels another dime.Where can go for an honest job?
Mechanic for Acura: Tim West, ASE Certified Technician replied 8 years ago
I can answer the question and thanks for the accept.

Variable Valve Timing Pressure Switch
Oil Pressure Switch
19 - Base 37250PNEG01 $56.65
19 - Type S 37250PRBA01 $56.65


Yes you can fix this if it's the switch here is the part numer. The labor is .3 which means (VERY EASY).

The same with the solenoid. You can handle this.




Thanks for the accept.
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