Question about 1994 Chevrolet G20

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Hi!there! I have a 1993 chevy van g20 with 350 petrol engine ive got a problem!Serv engine soon light comes on after driving in about 15 minuts,car runs ok!Checked egr and o2 censor working ok! Driving the car in the evening when its lower temp it dont come on,only in warm weather around 20 degress celcius!If i remove the cover inside the to get acces to engine and drive in hot weather it dont came on,when i put the cover back on it start light again after 10 minuts,a little bit loner if engine is cold

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  • runejag Sep 20, 2009

    Hi thank you!This was useful info;but i have same problem with this car(cant connect to vehicle)no power in ALDL,its trange same problem with 2 cars!What colour is it on the wire that shud be hot on the connector for reading engine codes?Can you help me with that problem?All fuses is ok inkl power to lighter!



    Regard Rune

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You will first need to use a diagnostic tool to find the code that is causing the light to come on, otherwise it is hit and miss. Below is a link to most chevy codes, this should put you on the right track and you maf be able to have advance or autozone retrieve the code for free!

http://www.engine-light-help.com/chevy-check-engine-light.html

Posted on Sep 20, 2009

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