CEL P2647 (Vtec Pressure Switch)
07-28-2008, 12:53 PM
#1
CEL P2647 (Vtec Pressure Switch)
I'm getting a CEL - P2647, which has to do with the VTEC pressure switch. It seems like my car wants to engage vtec at low/idle rpms. I hear a click/pop from the rear bank as if the vtec is trying to engage. This sends the car into safe mode. Anyone have this before?
I am suspecting either the Vtec pressure switch or the solenoid. I pressure tested the solenoid and it seems ok. I also checked oil pressure on the pressure switch and it is registering 18psi at idle and 80psi at 3k rpms (within spec). What else could cause this - bad sensor...,debris inside solenoid...? i'm confused.
I am suspecting either the Vtec pressure switch or the solenoid. I pressure tested the solenoid and it seems ok. I also checked oil pressure on the pressure switch and it is registering 18psi at idle and 80psi at 3k rpms (within spec). What else could cause this - bad sensor...,debris inside solenoid...? i'm confused.
07-28-2008, 06:41 PM
#3
Racer
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Originally Posted by Boosted_Brian
Did you check your vtec fluid? 
No clue on the issue you're having though. Have any cool friends willing to let you use their solenoid to test?
07-29-2008, 08:08 PM
#5
Well, if you have a code for a bad pressure switch, maybe try replacing it???
I dont have any manuals on my car yet (no problems so far) but most cars use oil pressure to change the valve timing I think, so they need a solonoid to open the oil pressure to the gizmo, and maybe monitor things with a pressure switch?
Brett
I dont have any manuals on my car yet (no problems so far) but most cars use oil pressure to change the valve timing I think, so they need a solonoid to open the oil pressure to the gizmo, and maybe monitor things with a pressure switch?
Brett
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