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How to perform diagnostics check?

1.5K views 12 replies 8 participants last post by  Shwag  
#1 ·
I was wondering if anyone knows the procedure to do a diagnostics check on the S13? My check engine light turns on intermittently, and has no effect on how the car runs or on gas mileage (22-25MPG consistantly). I have taken the car to a shop, and they said a code reader is not required to check the ECU for engine codes.

I need to get this problem sorted out because the check engine light has caused me to fail smog twice already even though everything else checked out perfectly.
 
#5 ·
#6 ·
Code 32, EGR. 3 red flashes, 2 green.

Any reccomendations for how to fix the problem? I'm guessing to check/replace the EGR valve, but I'd really rather not have to take off the intake manifold and clean out the EGR shit. Atleast if I do I'll have an excuse to bring out the dremel and match some ports. :)
 
#8 ·
Too bad my car is a 1990 as stated in my sig. and the OBDI system didn't become standard until 1991. Problem solved either way.