Wont stay running

Tiny
CURTIS4104
  • 1989 CHEVROLET CAVALIER
  • 105,000 MILES

89 z24 2.8 car wont start unless I hold gas to the floor. Then wont stay running if I let off the gas. Has new iac tps and map sensor. Also the tcc has been unplugged. Any ideas?

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Tuesday, November 15th, 2011 AT 3:25 AM

13 Replies

Tiny
JACOBANDNICKOLAS
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Any major vacuum leaks? Possible intake? Have you checked fuel pump pressure?

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Tuesday, November 15th, 2011 AT 3:28 AM
Tiny
CURTIS4104
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No vacuum leak and fuel pressure is good

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Tuesday, November 15th, 2011 AT 3:40 AM
Tiny
JACOBANDNICKOLAS
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Did this happen all at once?

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Tuesday, November 15th, 2011 AT 3:43 AM
Tiny
CURTIS4104
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Yes all at once got it to run for ten mins or so earlier but as soon as I give it gas now it stalls

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Tuesday, November 15th, 2011 AT 4:24 AM
Tiny
JACOBANDNICKOLAS
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I really feel it has to do with an intake leak. Double check to make sure there are no trouble codes stored in the computer.

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Tuesday, November 15th, 2011 AT 5:39 AM
Tiny
CURTIS4104
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I keep getting code 43

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Tuesday, November 15th, 2011 AT 1:28 PM
Tiny
JACOBANDNICKOLAS
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That is a knock sensor error. THe knock sensor can play with the ignition timing. Have you checked it?

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Tuesday, November 15th, 2011 AT 6:07 PM
Tiny
CURTIS4104
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Going to replace it will that cause my problem?

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Tuesday, November 15th, 2011 AT 7:16 PM
Tiny
JACOBANDNICKOLAS
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It could be an issue.

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Tuesday, November 15th, 2011 AT 9:57 PM
Tiny
CURTIS4104
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Replaced knock sensor still have to hold gas to floor to start stays running till I hit the gas then stalls.

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Tuesday, November 15th, 2011 AT 10:18 PM
Tiny
RASMATAZ
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Is this a TBI or an MPFI system?

Have you cleaned out the EGR valve and also the Throttle Body-Also check the ignition timing if its on specs and readjust the curb idle speed by turning the throttle speed screw-Let us know

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Wednesday, November 16th, 2011 AT 2:31 AM
Tiny
CURTIS4104
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Mpfi system egr and throttle body cleaned timing good and tried throttle speed adjustment still the same. And I thank u for ur time so far. Car still the same

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Wednesday, November 16th, 2011 AT 3:18 AM
Tiny
RASMATAZ
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What is the fuel pressure?

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Wednesday, November 16th, 2011 AT 6:54 AM

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