C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Motor just cuts off!! Help

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Old 02-28-2015, 09:46 PM
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tlxxtl
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Default Motor just cuts off!! Help

Ok I got you attention, I can start and warm up the car, I can drive it until I come to a stop then it will idle fine and just before or just as the light changes it dies. I place it in park and it starts right up, HELP I am stumped
Old 02-28-2015, 10:03 PM
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THE 383 admiral
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Originally Posted by tlxxtl
Ok I got you attention, I can start and warm up the car, I can drive it until I come to a stop then it will idle fine and just before or just as the light changes it dies. I place it in park and it starts right up, HELP I am stumped
This could be many components.
First check your fuel pressure. You will need a FP gauge.
Possible weak fuel pump or bad strainer\filter.
you could have a ignition module failing. Any codes?
Old 02-28-2015, 11:34 PM
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tlxxtl
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Originally Posted by THE 383 admiral
This could be many components.
First check your fuel pressure. You will need a FP gauge.
Possible weak fuel pump or bad strainer\filter.
you could have a ignition module failing. Any codes?
No codes, it just shuts off.
Old 03-01-2015, 06:46 AM
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C409
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..... Check the timing ... do the minimum idle adjustment and reset the TPS ... how old is the oxygen sensor ? .......
Old 03-01-2015, 07:24 AM
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bjankuski
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Originally Posted by tlxxtl
Ok I got you attention, I can start and warm up the car, I can drive it until I come to a stop then it will idle fine and just before or just as the light changes it dies. I place it in park and it starts right up, HELP I am stumped
what year, any mods?
Old 03-01-2015, 09:32 AM
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tlxxtl
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Originally Posted by C409
..... Check the timing ... do the minimum idle adjustment and reset the TPS ... how old is the oxygen sensor ? .......
Not sure purchased the car in July
Old 03-01-2015, 09:36 AM
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tlxxtl
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Originally Posted by bjankuski
what year, any mods?
1989 ,,, Not sure but stock plugs do not fit and it seems to loose traction very easy. This is my first corvette, I had to ease on the gas from stop lights or the tires break loose.

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