Start then dies

d7es3l

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Every morning when my truck is plugged in, I start it up and it starts just fine but then, about 4 seconds later it dies. Now, when my truck isn't plugged in, it will start just fine & won't die. What could be the problem? Or is there even a problem at all? I am thinking either hpop or gp's. thanks! It is a stock hpop supporting stage 1's but it handles them just fine! I am upgrading it soon.
 

POWER-STRUCK

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it may be the low pressure oil pump, worn and unable to build prime quick enough.
try reving it as soon as it starts and see if it dies afterward.
 
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