hey guys was wondering if anyone could tell me the way to get the codes from a check engine light without taking it somewhere and hooked up to a scanner i know theres a way to get them where the check engine light will flash a certain number of times to give me a code....and also when i get the codes where can i look them up to tell me what exactly they are...its an 89 rs 2.8....thanks alot...

 

You can use a paperclip to short the pins. Not sure I think it is pins 2 and 3. Someone here will verefiy that. Then you count the flashes after the first set. I have it in my shop manual at home I will look it up to make sure. Open the attached file for codes.

 

I found it, here ya go.

For GM domestic vehicles made before 1995, the diagnostic connector is located under the dash panel by the driver side. To get the check engine codes to flash in your dash panel, use a jumper wire or a paper clip and connect terminals A and B of the diagnostic connector. Turn your ignition key on with engine off and the codes should start to blink. All codes should start with code 12 which is one long flash followed by 2 short flashes. This code 12 means the diagnostic system is normal and will repeat itself continuously if there are no trouble codes. Otherwise, code 12 will flash 3 times before flashing the fault codes.

 

Not knowing what pins A and B are, this isn't going to help you much. While sitting in the driver's seat, you need to connect the 2 pins in the upper row on the right side of the connector with a wire or paper clip, and turn the ignition on without starting the engine.