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Old 09-10-2011, 07:21 PM   #9
kris's66lwb
resident wrencher
 
Join Date: Dec 2006
Location: ramona california
Posts: 720
Re: 1986 C20 1ton dually conversion Check Engine Light

The ecm should be behind the glove box if theres not one there you probly dont have one and therer fore will have the check engine light on if you want it off and dont have to smog it then pull th ebulb if your like cali folk then you have to fix that crap b4 smog time
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