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