Car MIL comes on when coasting and then stalls when pushing in clutch

Tiny
88MARMON
  • MEMBER
  • 1987 CHEVROLET CAVALIER
Car MIL comes on when coasting and then stalls when pushing in clutch. If I pop the clutch, or hit the key, it will start right back up and run fine. The MIL then goes off. After coasting again, the problem repeats itself. The car will again restart right away. Used the paperclip trick to retrieve codes. I got codes 34 and 35. Any help appreciated!
Wednesday, October 10th, 2007 AT 9:44 AM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

The code:
34- Map sensor signal out of range, low
35- Idle air control sensor circuit fault

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method

These can be triggered due to several factors. Wiring issue, faulty sensor or bad ECM.

I have attached the step-by-step trouble shooting guide for these (look below).
Follow those steps, which will help determining the issue.

Please let me know of any questions.
Thank you.
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Thursday, October 28th, 2021 AT 10:47 AM

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