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Misfiring and fowled plugs

Tiny
VIKINGDADDY1
  • MEMBER
  • FORD MUSTANG
Hello I have an 1988 mustang GT 5.0. It runs great BUT I am having trouble getting it to idle. It idles high then low then high and then tries to die. You can also hear it misfiring and the plugs get fowled up after a while Any thoughts on what could be wrong. Would an EGR or O2 sensor do this?
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Monday, April 9th, 2007 AT 6:49 PM

3 Replies

Tiny
VIKINGDADDY1
  • MEMBER
  • 3 POSTS
Anyone? No one. Please help
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Wednesday, April 11th, 2007 AT 7:22 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Last major tune-up? Could be the idle speed control/throttle body coked-up/throttle position and MAP/BARO sensor.

Or fuel pressure problem
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Wednesday, April 11th, 2007 AT 7:35 AM
Tiny
VIKINGDADDY1
  • MEMBER
  • 3 POSTS
Just did a tune up 3 weeks ago. And I tested the fuel pressure at the fuel filter it was 80
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Wednesday, April 11th, 2007 AT 12:40 PM

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