Fuel and Ignition Fuel Pumps and Systems, Ignition and Spark Systems

1993 Z28 will only run if pumping gas pedal

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Old Aug 25, 2008 | 03:29 PM
  #1  
eastwood's Avatar
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From: Topeka Kansas
Angry 1993 Z28 will only run if pumping gas pedal

I have a 1993 Z28 all stock. The car will start and fire but the only way to keep it running is to pump the gas pedal rapidly. If you try to idle at any RPM dies like its starving or loading fuel. Check psi and it is within specs and checked vac lines all ok now. The car sat for about 8 months so I removed the tank and dumped all 14 gallons of gas which was painful with the price of that stuff now and changed the strainer. I also changed the TPS and IAC. ANY IDEAS WOULD BE HELPFUL. Thanks a lot
Old Aug 25, 2008 | 06:56 PM
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From: Hell was full so they sent me to NJ
Might have some plugged or stuck injectors.
Old Aug 25, 2008 | 10:15 PM
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Well!!!!

I have pulled, cleaned and checked all injectors. Any other ideas? Any and all comments or suggestions will be greatly appreciated.
Old Aug 26, 2008 | 05:26 AM
  #4  
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From: Hell was full so they sent me to NJ
Probably would have helped if you told us that in the original post.

What is the fuel pressure?
Old Aug 26, 2008 | 12:35 PM
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Throwing any codes?? How does it sound when it dies, like it's choking off or does it just die period?
Old Aug 26, 2008 | 01:12 PM
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It sounds like it is choking if you mash it and hold it down but if you just let off of it the engine dies rough like its starving. 43 psi at the fuel rail.
Old Aug 27, 2008 | 04:14 PM
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give more info on the sound and what happens when the motor dies. Does it sputter, choke, etc?
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