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1998 Ford Mustang Engine will not stay running without grea

Tiny
RAM5619
  • MEMBER
  • 1998 FORD MUSTANG
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 112,000 MILES
I have a 1998 Ford Mustang with 12000 miles on it. I can not keep the engine running without keeping the RPMs over 3k and that takes great effort. I have replaced the plugs and used a Autoxray Code Scout 2500 on it. The scan comes back no codes found check engine light off and then list the following: Missfire (checked), Fuel System (checked), Comp. Components (checked) then the following do not have the check marks: catalyst, o2 Sensor, o2 sensor heater, EGR. When the egine dose run it is very rough, and you can smell gas and there is black smoke (particles) coming out the exhaust. Plugs were also black when changed. This problem happened all at once.
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Monday, June 30th, 2008 AT 9:09 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test the O2 sensors/coolant temperature/idle air control valve/motor, throttle position sensor/MAF/BMAP sensors- also check the fuel pressure
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Monday, June 30th, 2008 AT 9:14 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Check the resistance of the ECT(engine coolant temperature sensor)


https://www.2carpros.com/forum/automotive_pictures/62217_ECT_Rangesb_1.jpg


https://www.2carpros.com/forum/automotive_pictures/62217_ECT_Ranges_1.jpg

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Tuesday, July 1st, 2008 AT 8:06 AM

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