Code 32 on the ECM: Need Repair Advice

Reply Subscribe

Thread Tools

Search this Thread

Aug 7, 2002 | 08:44 AM

onedef92

Thread Starter

Team Owner

Joined: Oct 2000

Posts: 96,443

Likes: 9

From: Fort Knox, KY

Cruise-In IV Veteran

Cruise-In VI Veteran

Cruise-In VII Veteran

Cruise-In VIII Veteran

Code 32 on the ECM: Need Repair Advice

Got the dreaded "Service Engine Soon" light last night on my 92 LT-1 Coupe. I pulled the codes and came up with Code 32:Check EGR System.

What are the typical culprits? A leaking vacuum line? Dirty Solenoid? Dirty EGR valve?

The Vette's going to the shop next week for a leaking oil pan gasket, but I'd appreciate a Forum reality check for possible options before I consult with the technician. :chevy

Aug 7, 2002 | 09:37 AM

85 Dave

Le Mans Master

Joined: Nov 1999

Posts: 8,512

Likes: 3

From: Memphis, Tn

Re: Code 32 on the ECM: Need Repair Advice (onedef92)

Could be a number of things. Bad EGR valve. Vacuum leak. Bad EGR temp sensor. The EGR valve can be tested with a hand vacuum pump. :seeya

Aug 7, 2002 | 12:39 PM

vader86

Team Owner

Joined: Sep 2001

Posts: 62,161

Likes: 1,733

From: Athens AL

C7 of the Year - Unmodified Finalist 2021

C4 of Year Finalist (performance mods) 2019

Re: Code 32 on the ECM: Need Repair Advice (onedef92)

This is not something to be overly worried about, code 32 always comes up in my car on really hot days, i lose no performance so i just ignore it.

In addition to what he said, it can be as simple as an untightened gas cap.

Aug 7, 2002 | 12:51 PM

ittlfly

Safety Car

Joined: Feb 2002

Posts: 4,212

Likes: 10

From: Sun City West Az

Re: Code 32 on the ECM: Need Repair Advice (onedef92)

I had it come up on my 92 after installing headers. I replaced both the EGR valve and its'solenoid (knock on wood here)...I haven't had a problem since.

Aug 7, 2002 | 01:08 PM

Carroll B

Drifting

Joined: Jun 1999

Posts: 1,437

Likes: 0

Re: Code 32 on the ECM: Need Repair Advice (onedef92)

I have the same code on my 93. The shop manual (I know you have one) has a detailed procedure on testing the valve and also the passages inside the intake manifold for blockages. I checked my valve and it is okay. The local parts store has to order the valve or relay that turns it on. For now I just ignore the light. I seem to get it only when driving at 70+ for an extended period of time. The next time I start the car I don't get the light. I only set it every 4-5 months. A new EGR valve is about $55 and the selnoid is $20.

Aug 7, 2002 | 01:57 PM

onedef92

Thread Starter

Team Owner

Joined: Oct 2000

Posts: 96,443

Likes: 9

From: Fort Knox, KY

Cruise-In IV Veteran

Cruise-In VI Veteran

Cruise-In VII Veteran

Cruise-In VIII Veteran

Re: Code 32 on the ECM: Need Repair Advice (Carroll B)

Quote:

You described the symptomology to a T, Carroll B. Mine does the same thing. The car is going to the shop next week, though, and I figured I'd have them check the system while they had her in there....

[Modified by onedef92, 12:58 PM 8/7/2002]

Aug 7, 2002 | 03:49 PM

85 Dave

Le Mans Master

Joined: Nov 1999

Posts: 8,512

Likes: 3

From: Memphis, Tn

Re: Code 32 on the ECM: Need Repair Advice (onedef92)

[QUOTE I seem to get it only when driving at 70+ for an extended period of time. The next time I start the car I don't get the light. [/QUOTE]Thats exactly what mine did. It was the EGR temp sensor.

Aug 7, 2002 | 04:00 PM

Togo

Race Director

Joined: Jul 2001

Posts: 14,604

Likes: 3

From: Glendale, AZ

Re: Code 32 on the ECM: Need Repair Advice (85 Dave)

Quote:

I seem to get it only when driving at 70+ for an extended period of time. The next time I start the car I don't get the light. Thats exactly what mine did. It was the EGR temp sensor.

mine does that too, i have noticed that when driving on hot days in traffic with the AC on, the check engine light will come on, when i shut the car down and restart it, its gond :crazy: saving this thread for later use!!!!! :yesnod: