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06-07-2013, 09:33 PM
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#26 |
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Registered User
Join Date: Mar 2013
Location: Marquette michigan
Posts: 828
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Re: Code 42
what trouble code is it? where is the 4 wire plugin at?
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06-07-2013, 11:45 PM
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#27 |
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Registered User
Join Date: Aug 2010
Location: Ventura
Posts: 151
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Re: Code 42
It was the code 42. And its the pig tail that comes off the ICM. I went to the junk yard today and got another one but havent put it on yet.
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06-08-2013, 11:02 PM
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#28 |
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Registered User
Join Date: Mar 2013
Location: Marquette michigan
Posts: 828
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Re: Code 42
I know you changed a lot of parts. What distributor are you using? oem? Reason i ask is because gm sometimes encripts software for compatibility and can turn on check engine light or set soft fault codes. I know i keep going over the distributor voltage drop test but you have to know that it is basically 0 volts during the test before you start looking someware else. Original pcm and prom?
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06-09-2013, 01:14 AM
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#29 |
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Registered User
Join Date: Aug 2010
Location: Ventura
Posts: 151
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Re: Code 42
The distributor is a reman, Stock ecm and prom, swapped ecm with stock prom and same result. When I do a voltage drop it read -1.54 ml. Ive driven the truck for the past 2 days and it hasnt come on. I did add a ground from the ecm to body and no code since. I still have the miss on cold starts though.
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| code 42, est, prom |
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