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1995 Pontiac Firebird changed TPS. Now

Tiny
CHRONIC
  • MEMBER
  • 1995 PONTIAC FIREBIRD
  • 3.4L
  • V6
  • RWD
  • MANUAL
  • 160,000 MILES
Dark black smoke heavy,
idles when I push in clutch while driving at 4 when I stop moving take clutch out it goes to 9
runs rough.
changed plugs, wires, fuel filter air filter, tps, module and the cap.
Thursday, September 4th, 2014 AT 4:02 PM

8 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuel pressure with a gauge. Auto parts rent it. Also clean throttle plate on both sides and iac hole with choke cleaner.
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Thursday, September 4th, 2014 AT 4:07 PM
Tiny
CHRONIC
  • MEMBER
  • 5 POSTS
Code no response. Fuel preasure was 39.5 out of 42. Let out the gas from the tube and kept running. Ive cleaned the plate the best I could no change.
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Thursday, September 4th, 2014 AT 4:16 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Fuel pressure is 41-47 must meet minimum that is part of your problem. Make sure your tps switch is installed correctly. It has to move with throttle plate
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Thursday, September 4th, 2014 AT 4:20 PM
Tiny
CHRONIC
  • MEMBER
  • 5 POSTS
Aic ? Air intake control? Is that the one above my tps with the spring.
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Thursday, September 4th, 2014 AT 4:21 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Iac= idle air control it's on throttle body
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Thursday, September 4th, 2014 AT 4:23 PM
Tiny
CHRONIC
  • MEMBER
  • 5 POSTS
Ok what would cause the fuel preasure to drop. Or be low. Fuel pump?
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Thursday, September 4th, 2014 AT 4:38 PM
Tiny
CHRONIC
  • MEMBER
  • 5 POSTS
So on the iac is the the valve? Or the switch
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Thursday, September 4th, 2014 AT 4:42 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Take this to a pro who will know what to do if your fuel pressure isn't high enough then it's the pump. Save your self aggravation and cost. I have no further comments
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Thursday, September 4th, 2014 AT 4:48 PM

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