tpi problem - Team Camaro Tech
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post #1 of 3 (permalink) Old Apr 19th, 10, 02:34 AM Thread Starter
buzzy joseph
 
Join Date: Apr 2010
Location: westfield, massachusetts
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tpi problem

I have a 1991 camaro with 305 tpi. It seems to run lean and when i shut it off and try to immediately start it, it just cranks. if i wait fir 20 seconds it will fire up. Someone at the chevy garage said that when it is shut off the fuel runs back into the tank. I have replaced the fuel pump twice with no results. No one seems to be able to fix this car!

Last edited by buzzbomb; Apr 19th, 10 at 02:36 AM. Reason: mistake
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post #2 of 3 (permalink) Old Apr 19th, 10, 03:25 AM
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John
 
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Re: tpi problem

Check your fuel pressure regulator, may be leaking thru the vacuum hose, remove vacuum hose and check for fuel.
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post #3 of 3 (permalink) Old Apr 19th, 10, 03:44 AM
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Re: tpi problem

Any spark during the cranking?
Any power to the injectors? Black wire on injector connector is power from relay/fuse. Colored wire is from the ECM and opens/closes injector, voltage will go & down during cranking.
After no start cranking, are a couple spark plugs wet with fuel?

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