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How do i correct a Map sensor high voltage code on my 88 chevy?

Sent to Car Experts July 31, 2006 8:49 p.m.

A trouble code for MAP voltage too high and a rough idle on my 88 chevy van. A new MAP sensor did not correct the issue and all vacuum hoses are 100% OK. How can I correct this? Also performed a tune up and TBI rebuild.

Optional Information:
1988 Chevrolet G30 "K" 350 tbi

Already Tried:
tune up, chk hoses ,clear codes, rebuit TBI

Customer (name blocked for privacy)

Status: Closed Value: $10

Info Request
July 31, 2006 11:27 p.m. (2 hours and 37 minutes later)

REPLIED to Info Request

has anybody ck the actual vacuum of your engine?
and did anybody cked the signal of the map sensor
at the pcm?

bmw master tech -- shop foreman -- No feedback on 3 Car accepts
smog license,in the automotive field since 1988, ase master certified,bmw factory trained master tec

Reply to bmw master tech
Sent August 01, 2006 1:54 a.m. (2 hours and 27 minutes later)

No, I can chk. At what port should I? at the map sensor?Is the PCM the same as a ECM? Do I check it in code read mode or running ? Which leads and what are correct values ?

Thanks

Customer (name blocked for privacy)

Answer
August 01, 2006 1:59 a.m. (5 minutes and 23 seconds later)

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Sparkybuoy -- Auto Mechanic -- 93% Positive Feedback on 193 Car Accepts
20 years experience

Answer
August 01, 2006 11:02 p.m. (21 hours and 3 minutes later)

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bmw master tech -- shop foreman -- No feedback on 3 Car accepts
smog license,in the automotive field since 1988, ase master certified,bmw factory trained master tec

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