cleared code 32 in 91
Thread Starter
Burning Brakes
Joined: May 2004
Posts: 816
Likes: 0
From: Bremerton Wa
St. Jude Donor '04 &'05
cleared code 32 in 91
I replace the EGR valve, now The dealer says the 91 doesn't have a temp switch. I couldn't seem to find it either, so I am curious does anyone here know if they have one? 
Le Mans Master
Joined: Jul 2002
Posts: 5,818
Likes: 2
From: Alive and well in Burlington NC
Re: cleared code 32 in 91 (96zride)
The only thing I could find (EGR related) was a vacuum/elec. switch operated by TB vac. The only place the vac tube goes is to the EGR. It sits directly under the DS of the throttle body.
Le Mans Master
Joined: Jun 2001
Posts: 6,694
Likes: 3
From: Less Talk, More WOT | Houston TX
Re: cleared code 32 in 91 (96zride)
I dont know if your 91 is the same as my 89 but the EGR temp switch on my 89 is screwed into the egr tube that is covered in head shield that goes across the passenger side valve cover towards the firewall 
Burning Brakes
Joined: Jun 2003
Posts: 846
Likes: 105
From: Knoxville TN
Re: cleared code 32 in 91 (Wheelman)
I dont know if your 91 is the same as my 89 but the EGR temp switch on my 89 is screwed into the egr tube that is covered in head shield that goes across the passenger side valve cover towards the firewall
Melting Slicks
Joined: Oct 2000
Posts: 2,158
Likes: 9
From: N.E. WA
Re: cleared code 32 in 91 (Wheelman)
It don't gots one!!! When the ecm runs a code 32 test, it looks at the fuel integrator and must detect a change to pass the test. If the integrator is at a fixed value (lean or rich) when a code 32 is run, a code 32 will set. Sooooo, it only runs the code 32 scan during certain times, and park/neutral is not one of them. If your P/N switch is not operating, then the egr solenoid will not open and that could set a code 32. If you have a free flowing exhaust, little airflow will be forced through the egr valve and that can also trigger a code 32 during cruise! Basically it looks for a change in A/F ratio when it thinks the egr valve is open. No change equals code 32. That's my .02, take it for what its worth. You can solve that problem with a quick burn of a chip.
7th Gear
Joined: Jun 2004
Posts: 7
Likes: 0
From: Rancho Cordova California
Re: cleared code 32 in 91 (ANTI VENOM)
I'm under the impression that the '90-'96 engines were able to use the oxygen sensors to detect when EGR was introduced. If that's the case, maybe you should check your O2 sensors. Also, a vacuum leak can cause a Code 32, so it might simply be a disconnected hose somewhere.
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Thread Starter
Burning Brakes
Joined: May 2004
Posts: 816
Likes: 0
From: Bremerton Wa
St. Jude Donor '04 &'05
Re: cleared code 32 in 91 (Nak)
Good stuff! I have headers and exhaust, they may explain alot. However today I bought a used ECM with chip, put it in car would not run!!!! Swapped chips car runs sweet! Still no fans. Now how do I know how the damn chip is programmed? I am starting to think this car is very modified(and fast)realitvily speaking for an L98
Melting Slicks
Joined: Oct 2000
Posts: 2,158
Likes: 9
From: N.E. WA
Re: cleared code 32 in 91 (96zride)
Just bring that thing down to sticksville and let Uncle Anti fix it. I don't know alot about alot of things, but I know a little about vettes. If it aint stock, I can tell you what you have and what you don't have. Peace!!!!!!
