Hi all ,, here is my delema , i had to replace my egr valve two weeksago , well thats what the car told me atleaste , code 32, well last night the engine light pops back on , i went to check the code and it was 32 again, i was wondering if anyone has had any problems like this? if maybe something els is making it throw the egr code? , im going to order one from GM , last one was from Auto Zone and was a chore to find too. if anyone has any ideas or input , it is greatly appreciated ,

------------------
Pino
91'Formula
LB9 305 TPI 5-speed
http://www.geocities.com/MotorCity/Garage/5654/mur91.jpg

 

I am not sure on your egr but, did you replace the sensor that is mounted on it? some times carbon build up in the manifold will do it. or even as simple as using too much silicone. if you even used any (I hope not) you can check the vacume lines too well really should first.

 

Different years used different EGR Setups (temp sensor/no temp sensor). To find out more about EGR, check out EGR There are two parts to this, so check them both out.

As for the concern, starting with a GM valve is your first best move, then making sure that the solenoid has adequate vacuum is your next. Make sure none of the hard plastic lines arn't cracked or dryrotted. Visually inspect them carefully, they can be hard to spot.

------------------
If you live in Southeastern US, check us out!
South East Thirdgen


ASE Master Tech + L1
Savannah, GA

'87 Trans Am
S/D TPI retrofit including functional PassKey,
22# injectors,
JET AFPR,
Ported Plenum,
TB Coolant Bypass,
SSM SFC,
Boxed LCAs,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
KYB Shocks

'97 Bonneville SSE

 

thanks for the info GMtech , i just ordered the egr valve from gm dealer , im going to start there and check everything clean out the intake and check the vacume lines. the thing is it runs fun , wont die when it first happened i had it on the high later on in the night after the engine light came on, and i was almost into Boston when i hit traffic,,, big surprise ,,,, and it would stall everytime i had to stop , maybe i didt let it warm up enough last night didnt go too far , but thanks again

------------------
Pino
91'Formula
LB9 305 TPI 5-speed
http://www.geocities.com/MotorCity/Garage/5654/mur91.jpg

 

might be way too obvious, but did u disconnect the battery for about 15 minutes to clear the computer of all the codes after you put the egr in????

 

Oh yeah had it disconnected for two days waiting for the egr valve to come in. , I learned that trix a long time ago, thanks though.

 

GMtech, hi ,,, i just replaced the egr valve and noticed the one that was in there , was a gm part but it had a different numbers on it from the one i got from a local dealer, i was just wondering if maybe the one they gave me last week at autozone was maybe for a differnt year tpi , iTs physicaly the same .

 

It may look the same, but still may be different. Make sure there isn't a threaded hole in the base for the temp sensor in one of them. Also, it could be that one was a Positive backpressure valve, and the other was a negative backpressure valve. Try it out and see what it does.

------------------
If you live in Southeastern US, check us out!
South East Thirdgen


ASE Master Tech + L1
Savannah, GA

'87 Trans Am
S/D TPI retrofit including functional PassKey,
22# injectors,
JET AFPR,
Ported Plenum,
TB Coolant Bypass,
SSM SFC,
Boxed LCAs,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
KYB Shocks
14.97 @ 94.9 MPH

'97 Bonneville SSE

 

Ok i replaced the egr valve wed night, everything was fine no codes, , well i was driving it allday today , about an hour ago the damn light popped on, it was fine all day , i came home and it has code 32 , i checked everything when i put it in cleaned the intake port , checked all the vacume lines , i am stumped , my buddy is going to hook it up to his computer to see if it finds anything , but if anyone has any idea i would greatly appreciate it.

Thanks

------------------
Pino
91'Formula
LB9 305 TPI 5-speed
http://www.geocities.com/MotorCity/Garage/5654/mur91.jpg

 

Check the voltage to the solinoid, with the the key on you should have 12 volts or more to the pink/blk wire. If you have voltage then spray some WD-40 into the solinoid and let it soak. Then have someone turn the key on and off while you put your fingers on the solinoid to feel a click, if no click replace the solinoid.

 

Ok ,, ill try that thanks,,, one more thing can you give me a rough idea where the solinoide is ,,,,

once again thanks

 

Is your exhaust modified any? Too little backpressure will cause code 32

------------------
'89 Formula 383 TPI

 

my exhuast is , just a flowmaster and everthing els is stock , i think my vacume solinoide is dead , i have to check my gm shop manual tomarrow ,

 

Well , i changed the egr valve and the vacuume soleniod , and the engine just came back on , i dont know what the code is but ill put money on it that it's 32 , i have no ideas left ????