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MAP sensor problem

Tiny
ALI ALABADI
  • MEMBER
  • 1990 TOYOTA CRESSIDA
  • 2.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
Hello, I have a problem with a MAP sensor for the car listed above, engine 1G-FE. When I drive the car at fifty km per hour and above it vibrates a lot, but when I lift my feet the throttle car is stability or comes back normal. Also, when the car is running at idle speed when I move the MAP sensor with my hand slightly turns off the engine. What is a fix of MAP sensor and how to clean it at home? Please help!
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Wednesday, April 11th, 2018 AT 7:25 PM

4 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
The MAP is a sealed unit and if faulty it must be replaced. But first make sure that the vacuum line is attached and not split and leaking and the electrical connection is clean and tight.
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Thursday, April 12th, 2018 AT 6:45 AM
Tiny
ALI ALABADI
  • MEMBER
  • 3 POSTS
Hello, Finally a MAP sensor has been fixed. My car engine is running smoothly, but engine is a little little bit shaking I unknown where from. Please help!
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Friday, April 13th, 2018 AT 12:15 PM
Tiny
STEVE W.
  • MECHANIC
  • 12,975 POSTS
That engine was never a smooth running design. However, if it had been running with misfires and extra fuel due to the bad MAP then I would probably pull the plugs and clean/gap them at least or replace them if they are badly carbon fouled.
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Friday, April 13th, 2018 AT 4:08 PM
Tiny
ALI ALABADI
  • MEMBER
  • 3 POSTS
Yes, thank you very much
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Saturday, April 14th, 2018 AT 6:53 AM

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