1994 Chevy C1500 running issues

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  #1  
Old 10-11-04, 10:37 AM
Harley8879
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Question 1994 Chevy C1500 running issues

I have a 1994 Chevy C1500 350ci, 5 speed manual, 2wd, that dies out after warming up to running temp. It runs fine when the rpm's are high (1000+) but when brought down to idle speed it will die out. At this time it is not getting fuel to the TBI. I have check the fuel pump (OK), the throttle idle position sensor, and the MAP. At one time I received the code that the MAP was bad. I replaced the MAP and checked the other sensor and ECM, cleaned the distributor cap,rotor,etc. Has anyone else come across this or have any suggesttions?
 
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Old 10-12-04, 02:51 AM
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do you have fuel pressure when the problem occurs, do you have injector pulse or spark.
 
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Old 10-12-04, 05:29 AM
Harley8879
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Yes, I have fuel pressure ,spark and the injectors are clicking.
 
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Old 10-13-04, 05:37 AM
daswede's Avatar
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Location: massachusetts
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Had a similiar problem with my 305. Turned out to be a bad gasket between the Throttle body and the intake manifold. (air/vacumm leak)
 
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