1994 Ford F 150 Still Having Idle Replaced O2 Sensor Egr Tps Head

1994 FORD F-150
190,000 MILES
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MIKEO267
  • MEMBER
  • 1 POST
I am still having an idle problem. I have replaced the O2 Sensor, the EGR, The TPS, I have replaced the head gaskets and intake manifold gaskets, fuel injectors, Idle Air Control Valve, New Plugs, Wires and Coil. It originally has a misfire. The misfire is corrected, but every single sensor has been replaced. Other then being a Faulty Engine Control Module, I am completely stumped.
Dec 26, 2012 at 8:44 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
check fuel pressure and for a vacuum leak with choke spray fuel pressure shold be 35-45 unless a 4.9 key on engine off 28-45 engine idling
Dec 26, 2012 at 8:47 PM
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