when engine is cold, car runs fine.. after it warms up under low speed or stopping for a light.. it stalls.. then cel comes on with a p0466 code.. evap system circuit blah blahblah.. looked at hoses, didnt see any cracks or leakage from evap canister under rear driver side fender.. any suggestions on what it may be before i spend buku cash on this headache??

 

P0466? I don't recognize that one. You sure that's the right code?

 

i meant the p0446.. sorry

 

Code: P0446 | Description: Vent Control Valve

 

0903 Diagnostic Trouble Code 0903 indicates a problem with the Evaporative Emission (EVAP) Canister Vent Control Valve or its associated electric circuit.

This part is used by the Engine Control Module to perform the fuel system leak test. Since it is used only for self-diagnosis your engine will run perfectly well despite the dashboard Malfunction Indicator Lamp.

The EVAP canister and this valve are located under the car, near the rear left tire. You might check to make sure all the electrical connectors in that area are secure.

There's no telling how expensive the repair will be, because no definite diagnosis has been made. Maybe you just have to re-plug a loose connector. Since the EVAP system is part of the emissions control system you might have warranty coverage

 

tigersharkdude.. thanks for the info.. other than the harnesses, there is a way i can check this evap control valve?

 

^^Cant help you there, Ive never had this problem. All of the info. I posted I got from searching

 

Had this same code. Couple of things to do. Take the vent control valve off the cannister, clean it, and bench test it to make sure it operates. Also, there is a bracket on the front of the cannister with a couple of bypass valves and several small hoses. On mine, one of the plastic nipples was broken so it lost vacuum, but the hose held it in place so you couldn't see the problem visually. I didn't find it untill I was poking around and acutally saw the hose end move. I ended up gettting the whole assembly and cannister at a Pull-A-Part yard and just changed out the whole bracket with parts. Good luck.

 

GEE,wonders never cease. search you say??? what the hell is that, oooooo you mean when you dont waste other people's time and your lazy a$$ looks for the code via searching???

 

EDIT: My online sarcasm detector failed.......sorry bout that

 

o, well, that was aimed at the op that started the thread man, not joo..

 

Agree with Maxride (pains me to say lol )

OP,

Gotta do a SEARCH. Sooooooo much info is right at your fingertips

 

its all good.

 

well... i changed the purge valve.. and changed air filter.. since that was done hasnt stalled on me since.. as far as the so called funny guys.. yeah i searched.. and searched and found many possibilities of what could of been wrong.. i would figure since we are all part of the maxima nation, that maybe some body could steer me in the right direction without spending money changing every nut and bolt.. but hey its better than asking how do i change a head unit.. tigershark and bobflood, thanks for the positive input..

 

Rather than skim the whole thread..

Also, you need to check for a vaccum leak.

Once the car warms up the IACV drops the idle down significantly.

A bad/dirty IACV will also drop it down lower to levels of almost 500 rpm.

This is near stall conditions.