Re: 2003 mach1 check engine light
i took the car to the dealer and the said that the jlt intake is the cause so i am putting the stock intake back on and going to see what happens . far as the computer its stock i still have the stock tune. i used my friends predator to pull the codes that i got i dont know were or how it pulled some of those codes. thanks for everones help i will reply to let you all know if it really was the jlt.
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