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1987 Chevy S-10 I have a few questions that I need answered

Tiny
DARRINANDMELISSA
  • MEMBER
  • 1987 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 81,494 MILES
I have a 1987 Chevy S10 with only 81500 miles on it. It is a 2wd 4cyl automatic 2.5 fuel injected engine.I just have a few repair questions and hope you might have answers for me.

How do I know if my MAP Sensor is bad?

Does my throttle body have a Mass Airflow Sensor?
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Friday, June 20th, 2008 AT 3:44 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
It doesn't have a MAF sensor-You asked about the MAP sensor is it bad are you getting a DTC 33/34 if not its doing its job.
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Friday, June 20th, 2008 AT 4:48 PM
Tiny
DARRINANDMELISSA
  • MEMBER
  • 2 POSTS
We dont have a code reader cause its an 1987 and we dont want to pay $50 to have the chevy dealer read it
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Friday, June 20th, 2008 AT 7:16 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try using a jumper wire between A and B then count the flashes- for a code 12 flash pause then flash flash.


https://www.2carpros.com/forum/automotive_pictures/12900_GM_ALCL_3.jpg

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Friday, June 20th, 2008 AT 7:42 PM

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