1995 Pontiac Firebird changed tps.. now

1995 PONTIAC FIREBIRD
160,000 MILES • 3.4L • V6 • RWD • MANUAL
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CHRONIC
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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..
Sep 4, 2014 at 4:02 PM
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HMAC300
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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.
Sep 4, 2014 at 4:07 PM
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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...
Sep 4, 2014 at 4:16 PM
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HMAC300
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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
Sep 4, 2014 at 4:20 PM
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aic ? air intake control.?? is that the one above my tps with the spring.
Sep 4, 2014 at 4:21 PM
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HMAC300
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iac= idle air control it's on throttle body
Sep 4, 2014 at 4:23 PM
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ok what would cause the fuel preasure to drop. or be low.....fuel pump?
Sep 4, 2014 at 4:38 PM
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so on the iac is the the valve? or the switch
Sep 4, 2014 at 4:42 PM
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HMAC300
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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
Sep 4, 2014 at 4:48 PM