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What are the codes 35 and 42, my car will start.

Tiny
ANONYMOUS
  • MEMBER
  • 1994 CHEVROLET LUMINA
  • 154,000 MILES
What are the codes 35 and 42, my car will start for about 10 minutes then dies. I have replaced the map sensor, the throttle position sensor, and the idle air control valve. Please help
Wednesday, January 16th, 2013 AT 8:35 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,289 POSTS
DTC - 35 IAC problem or idle error

DTC - 42 Ignition bypass circuit error

Are you able to keep the engine running if you give it gas? Have you checked fuel pressure? Does it always start right back up?
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Wednesday, January 16th, 2013 AT 8:59 PM

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