Question about 2003 Honda CR-V
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Posted on Jan 02, 2017
i would check the oil plug screw seal first before i would do the valve solenoid/pressure switch. also, if the oil plug screw seal is fine and tightly screwed in, it may just be the switch seal itself.
Posted on Feb 05, 2009
Here is the info
NOTE: The ignition key must not be on prior to the cold start otherwise the heated oxygen sensor diagnostic may not run.
1. As soon as the engine starts, idle the engine in drive for two and a half minutes with the A/C and rear defrost on. OBDII checks oxygen sensor heater circuits, air pump and EVAP purge.
2. Turn the A/C and rear defrost off, and accelerate to 55 mph at half throttle. OBDII checks for ignition misfire, fuel trim and canister purge.
3. Hold at a steady state speed of 55 mph for three minutes.
OBDII monitors EGR, air pump, O2 sensors and canister purge.
4. Decelerate (coast down) to 20 mph without braking or depressing the clutch. OBDII checks EGR and purge functions.
5. Accelerate back to 55 to 60 mph at half throttle. OBDII checks misfire, fuel trim and purge again.
6. Hold at a steady speed of 55 to 60 mph for five minutes.
OBDII monitors catalytic converter efficiency, misfire, EGR, fuel trim, oxygen sensors and purge functions.
7. Decelerate (coast down) to a stop without braking. OBDII makes a final check of EGR and canister purge.
Posted on Oct 02, 2010
SOURCE: 2003 honda accord dx has
Replace VTEC Oil Pressure Switch for DTC P2646, P2647
NOTE: This article applies to '03-05 Accord L4s, '03-05 Elements, and '02-05 CR-Vs.
Got a vehicle in your shop with either of these DTCs?
• DTC P2646 (VTEC oil pressure switch circuit low voltage)
• DTC P2647 (VTEC oil pressure switch circuit high voltage)
Replacing the VTEC oil pressure switch (P/N 37250-PNE-G01, H/C 6737217) usually fixes the problem. If it doesn't, then press on with normal troubleshooting.
Keep us updated.
Posted on Dec 09, 2010
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