afternoon....

Im trying to cvhase down a couple of issues on my 90 vert and want to check for error codes(since one issue is the flickering check engine light) anyone no where i can find details on how to read them from my car...ie. where to ground ,where to read,and what is it im reading!? thanks in advance.....

 

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There are two green connectors near battery

The single wire green connector needs to be grounded, usually to the negative battery terminal with an extention wire and clip

Once connected turn key to on position and watch check engine light in car

Count the blinks

Short blinks are one, longer blinks are 10

the code(s) will repeat so watch is a couple of times

then contact me with your results so we can see what code(s) you may getting

To clear codes, disconnect negative battery terminal, turn key to on position and press on brake pedal for up to one minute.

good luck

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