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1994 K1500 Engine Code 42

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Sep 30, 2022, 8:45 AM

Post #1 of 2 (733 views)
  post locked   1994 K1500 Engine Code 42  

Hi, I have a 1994 Chevy K1500 5.7L TBI A/T. Every time it is cold started the service engine soon light comes on code 42. Sometimes the engine seems to faulter some when first started and then stalls. Engine generally restarts fine when restarted, although seems to be a little rough and the warning light stays on steady. After engine is fully warmed up and shut off, then restarted, the engine seems to run smoother and the light will stay off until started the next day. I'm mostly concerned that the engine will stall while driving, or stopped at an intersection, which would kinda suck.

Thank you for your time,


ps: I hope I didn't send this multiple times

Tom Greenleaf
Ultimate Carjunky / Moderator
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Sep 30, 2022, 9:02 AM

Post #2 of 2 (729 views)
  post locked   Re: 1994 K1500 Engine Code 42  

This one closed the other alive it came thru twice doesn't help us help you, Tom

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