LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Need help ODB1 Code 42

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Old 05-17-2005, 02:01 PM
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Join Date: Nov 2004
Location: Las Vegas/Pahrump, NV
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Need help ODB1 Code 42 - daily driver down!

Car was running great, drove through a water puddle and the SES light came on. Pulled code and it's a code 42, car was idling rough and had a random no start condition. Installed a new opti - it was due at 154k - new icm at the same time, checked all wiring and connectors all look good. Any ideas? I need the car asap as it is my daily driver. Thanks in advance.

Last edited by 04toy; 05-17-2005 at 02:47 PM.
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Old 05-17-2005, 04:03 PM
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Re: Need help ODB1 Code 42

ignition control shorted or grounded
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