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

1987 CHEVROLET CAVALIER

88MARMON

MEMBER
1 POST

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!

Oct 10, 2007 at 2:44 AM

SQM

✓Experienced 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.

Images (Click to enlarge)