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2002 Toyota Highlander MAF sensor failure

Tiny
OSAZUWAOBASUYI
  • MEMBER
  • 2002 TOYOTA HIGHLANDER
  • 2.5L
  • V6
  • FWD
  • AUTOMATIC
  • 183,000 MILES
I have changed my MAF sensor twice in one week and its still went bad. The car emmites black smoke, consumes a lot of fuel, engine jecks while driving, check engine light is on. Each time I change the MAF sensor with a good one, the black smoke stops but after 48 hours it will emmit serious black smoke. Please help me

Osazuwa.
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Thursday, August 20th, 2015 AT 2:23 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
So, maybe the MAF isn't your problem. Your engine could be getting an over rich mixture from numerous ways. Someone needs to analyze the sensor data with a professional scan tool to determine what is going on in the system.
You could have injectors leaking, a bad fuel pressure regulator or numerous other issues.
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Friday, August 21st, 2015 AT 5:27 AM

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