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I just had a crate engine installed. New intake, 3 new coils installed. Check engine light came on. I hooked up my tester and got a code P300 .What should I check? Or should I do? Carry it back to the dealer

Vehicle: 2000 Ford F150 engine size 5.4

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Hi there,

This code indicates misfires on random cylinders. Here is a list of possible causes.

P0300 FORD - Random Misfire Detected

Read more: https://www.autocodes.com/p0300_ford.html

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