william407

Ok so I have a 2002 Camaro 3.8 and these are symptoms im having and shat ive done to car

Car runs like total **** , huge power loss , coolant fans stay on from start up , coolant temp guage is dead which is leaving the check engine light on! 

Symptoms
-idles stays stuck at 1500 for a few seconds ( 10- 15s ) after im fully stopped

- im getting engine light (code p012 shows 2 times

- when in gear car sputters like its running out of gas unless I turn a/c on then it will stay on , will idle a lil better in neutral or park

(Used to throw MAF code but I no longer get it with new one or old one)

Things ive done recently
- plenum gasket
-Maf
- oil
-coolant
-water pump
-coolant elbows (aluminum)

What ya guys think ? 


So far people are giving me 3 major things

-Egr valve
-Catlyic converter
-Pcm (computer)

Which all sound wrong  any one have input or suggestions?

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PublicEnemy1

Idle air control valve on the throttle body probably. I know the idle air is increased when the ac is turned on to compensate for load. On my old 85 V6 it got clogged and needed to be cleaned to get a good idle. And sometimes the solenoid in it goes wacky. Should be the same concept the 3.8L

Injuneer

Hopefully he figured it out in 1.5 years.

The 2002 V6 has a motor actuated throttle positioner, that does away with the throttle cable, idle air control valve, cruise cable, etc. There a position sensor under the accel pedal that feeds the "throttle actuator control module", which sends an electrical signal to the throttle to open and close it.