Hey guys 500 miles put on my new engine and today while it was idling the service engine soon light came on and then whent off when i started moving again. this happened 3 times and I want to know if there is a cheap scanner i can get to pull the codes on the light and see what was causing it, thanks.

 

Scanner! We don’t need no stinking Scanner!
Got a paper clip? Jump one connector to the other and count the blinking light. With the engine not running the first code you will see is 12. That is one blink a pause then two blinks. It will repeat that 3 times. After that it will blink out any stored codes.

http://www.extreme-check-engine-light-codes.com/GM%20OBD1%20Decoder.htm

 

I think there is a good marketing opportunity here.
NOW AVAILABLE, affordable OBDI Code Scanner Tool.
Simple and easy to use, fits easily into your pocket too.
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Picture of prototype model shown below...

 

wow thats great lol thanks


Well I whent out and gave this a shot and the only thing it did was turn the fans on, I did some research on the web and people are saying that you were only able to do this on 93 or older camaros

 

Ok something stange is going on and i cant put my finger on it. If I put the clip where it should go before turning the car to the on position the light doesnt come on at all, If I put it in after it is in the on position the light stays solid and does not flash. Any ideas on this?

 

Turn the key on first do not start it. The light should go on. Then jump the connectora second or two afterlight should start blinking.

 

yeah that is what I tried still no luck with i it just stays solid

 

Sure you are jumping the right connectors? Do you have a aftermarket chip in the ECM? Most cars that will not flash a 12 is because the diagnostic side of the ECM is fried.

 

I dont have a chip but it was reprogrammed by pcmforless, yeah i have the pin in the right place too

 

I work on the OBD1 systems but only up until 1989 at that point just the vets where programmable and that was by the factory. I have no idea if having a reprogrammed chip could cause the system not to work. When I would get a car in to work onthat have a aftermaket prom I had to switched it back to the stock one because it would not give me any codes. I can't really help anymore, sorry