does anyone know the early 90's chevy trouble codes?

K

Kakarott

New member
i recently won a 91 chevy c1500 shortbed regular cab in a drag race. well when i test drove the truck for the first time the service engine light came on. and i got the codes out. 33, 54, and 24. i dont know what they are though. i know one of them is the map sensor and the other one is the fuel pump relay. i replaced them and they still come on. they hayne's book is like 50 dollars. ive looked online and i get different codes. if someone would answer my question it would be greatly appreciated. thanks in advance
 
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