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2000 Buick Century Mass air flow sensor

Tiny
RBROOKS
  • MEMBER
  • 2000 BUICK CENTURY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 169,000 MILES
Will a bad mass air flow sensor cause the plugs to foul out? I just replaced the sensor. It ran fine until the engine heated up and then it felt like the plugs were misfiring. Could this happen?
Wednesday, July 23rd, 2008 AT 7:47 PM

3 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
No. Are the plugs actually gas soaked?
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Wednesday, July 23rd, 2008 AT 7:50 PM
Tiny
RBROOKS
  • MEMBER
  • 2 POSTS
No sir. But the code when checked said the MAF was bad and that is was missing on three cylinders. That is why I was wondering about the fouled plugs. I replaced them last week after I got the reading but did not replace the MAF until today (7-23-08)
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Wednesday, July 23rd, 2008 AT 8:13 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
I dont think you have fouled plugs or if you do its not from the mass air flow sensor. First thing to check is remove the vacuum hose on the fuel pressure regulator and see if there is any sign at all of gasoline in it or the hose is real spongy, if it is then replace the fuel pressure regulator because the rubber diaphram has ruptured and it is leaking raw fuel into cylinders causing flooding. Also checkl the coil towers for rust.
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Wednesday, July 23rd, 2008 AT 8:18 PM

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