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87 vette stalls out when you floor it?

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Old Sep 10, 2009 | 09:11 PM
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Default 87 vette stalls out when you floor it?

I'm workin on this 06/1990 vette the title i wrote wrong, it starts up and ideals fine when the engine is cold but if you go to give it gas it boogs out and will shut off if you don't let off the gas. Once it is warmed up if it dies it doesn't want to start back up till it cools down. Any ideas? thanks Adam
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Last edited by VW AUDI MAN; Sep 16, 2009 at 09:02 AM.
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Old Sep 11, 2009 | 11:17 AM
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what is your fuel pressure like? sounds like it could be a weak fuel pump.
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Old Sep 11, 2009 | 06:09 PM
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it will crank once it dies but it just wont fire? I bet its a fuel issue as well.
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Old Sep 12, 2009 | 06:52 AM
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weak fuel pump did the 87's have opti???
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Old Sep 12, 2009 | 07:51 AM
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uh no.......
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Old Sep 13, 2009 | 05:23 PM
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no but they did have fuel pump issues too
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Old Sep 15, 2009 | 08:10 PM
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And its was made 06/1990 vette.

Fuel pressure at 45psi on the fuel rail.

Once it has been idling and warmed up if you turn it off it will not fire back up till it cools back down. Also like i said when i go to give it some gas it starts to sputter and kinda like back fire.
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2001 Imola Yellow S4
1998 Ginster Yellow GTI VR6
1992 Red Corrado SLC VR6 stock woookie
1994 Forest Green Corrado SLC VR6 with Vortech Supercharger!
1991 White GLI Jetta 16v in progress
1992 Black GTI 8V mint
1975 930 Turbo Slant noise
And any other car thats at the shop
Unicar Sales VW/Audi Used Parts and Service!
813-935-8847
9109 Lazy Ln. Tampa FL. 33624

Last edited by VW AUDI MAN; Sep 16, 2009 at 09:01 AM.
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Old Sep 17, 2009 | 08:38 AM
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bump.
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1994 Forest Green Corrado SLC VR6 with Vortech Supercharger!
1991 White GLI Jetta 16v in progress
1992 Black GTI 8V mint
1975 930 Turbo Slant noise
And any other car thats at the shop
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813-935-8847
9109 Lazy Ln. Tampa FL. 33624
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Old Sep 18, 2009 | 04:38 AM
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what is the fuel pressure when it won't fire back up?
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Old Sep 18, 2009 | 04:30 PM
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check the fuel pressure first. if the fuel pressure is good then check the coolant temp sensors as they were notorious for failing if the car sat for a while. if memory serves me right, i believe the engine coolant temp sensor is located on the drivers side cylinder head. these sensors fail in two ways: either shorted or open circuit. if the sensor shorts out the sensor reads -40F to the ecm, if the sensor has an open circuit the sensor reads 285F to the ecm. if the sensor has an open this will create a hot start problem as the ecm is leaning the fuel mixture soo much to were it wont start when warm.
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