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- - 1990 Blazer code 32 (https://67-72chevytrucks.com/vboard/showthread.php?t=533098)

1990 Blazer code 32

Recently the "service engine soon" light came on my 1990 Blazer. I scanned for codes using the paper clip method. I got a code 32 (EGR SYSTEM). So I put in a known good, working, negative backpressure EGR Valve from a different TBI Blazer, which did run good before I pulled the EGR Valve. I drove it around that day with no more SES light. Yesterday I was driving it and the SES light came on again. So I scanned for codes again and got code 32. I have noticed that I have been getting bad gas mileage and a foul smell from the exhaust (which has no catalytic converter present.) The truck also has a new Delphi IAC Valve. The engine runs good and has plenty of power, no hesitation or bucking and the injector spray pattern looks very good.

Re: 1990 Blazer code 32

Fixed the problem myself. Thanks everyone.

Re: 1990 Blazer code 32

Quote:

Originally Posted by OSDCrusher (Post 5490288)

Fixed the problem myself. Thanks everyone.

So what was the solution to your Code 32 problem - EGR related codes are PITA to figure out sometimes.

//RF

Re: 1990 Blazer code 32

I replaced the EGR valve, then I reset the ECM. SES light stopped coming on.

Re: 1990 Blazer code 32

How do you reset the ECM?

I got a 32 code too. Going to replace the EGR valve and hopefully that will fix it.