1996 Ford Probe Engine missfire

1996 FORD PROBE
135,000 MILES • 2.5L • V6 • FWD • MANUAL
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CHASEHILL
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  • 2 POSTS
The car has very low power and when you accelerate it backfires into the intake. I have replace the distributor and timed it to ten degrees btdc. I have checked the camshaft timing and it is correct. If I restrict the air flow to the intake the engine smooths out and starts to run better. Could it possibly be a failed egr valve or a failed VAF feeding the ecm false data. I have also replaced the crankshaft position sensor
Nov 24, 2014 at 8:11 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JOHNNYT73
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 924 POSTS
I would check out your mass air flow sensor, and spray around with throttle body cleaner for vacuum leaks.
Nov 25, 2014 at 4:58 AM
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JOHNNYT73
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 924 POSTS
Also have it checked for a clogged converter.
Nov 25, 2014 at 4:58 AM
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CHASEHILL
  • MEMBER
  • 2 POSTS
The converter has just been replaced
Nov 25, 2014 at 8:06 AM
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JOHNNYT73
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 924 POSTS
Thats good. If you have a scan tool that can read live data. I would look at the MAF sensor, O2 sensor readings, and look at all your temp sensor readings (ECT, IAT, ambient air temp).
Nov 25, 2014 at 8:55 AM