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Tiny
TOMDIMIT244
  • MEMBER
  • 1988 BUICK LESABRE
  • 194,000 MILES
3.8 L VIN C I am wondering if I have a map sensor and if I do where is it located?
Wednesday, August 15th, 2012 AT 6:12 PM

4 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
What codes do you have in the computer?
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Wednesday, August 15th, 2012 AT 6:21 PM
Tiny
TOMDIMIT244
  • MEMBER
  • 4 POSTS
Codes 34 and 44 show up but the CEL does not come on.
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Thursday, August 16th, 2012 AT 2:11 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
I would stat with the code 34 which is for mass airflow sensor low voltage nothing to do with a map sensor. The code 44 is for lean o2 sensor value which could be caused by the mass airflow problem.I posted the trouble tree for code 34 and all the info needed to diagnose it. Let me know what you find.
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Thursday, August 16th, 2012 AT 4:33 PM
Tiny
PCDJ64
  • MEMBER
  • 127 POSTS
The MAP sensor is on top passenger side of the engine over the PCV valve.
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Saturday, September 1st, 2012 AT 12:49 PM

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