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Originally Posted by Kewill0360
Hi guys i have a 328i 07 i install Bms Powerbox on it and start the car since that day my car been revving up and down by itself some times its start and shut down right away took it to the stealer dealer and got told it was the throttle body and the dmtl pump...
ok i replace the throttle body my self since they say it was going to be 1k
and nothing the problem continues the dmtl they say is bad because check engine light is on and is not because is bad is because i did a run with out air intake on....
i dont know what else to think of could it be the HPFP??
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Dunno if you ever figured it out but 1: you don't have a hpfp and 2: I highly doubt the dmtl pump is the cause of your problem. It's only function is to pressurize the gas tank and check for evap leaks.