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jconm3
07-22-2008, 11:54 AM
computer scan comes up 69knock sensor, 70knock sensor, airmass sensor. what could cause these codes to come up??:mad:

Bruce
07-22-2008, 03:10 PM
*shrug* bad knock sensors and MAF *shrug*

jconm3
07-24-2008, 11:39 AM
rpms seem to hesitate at around 3000rpm, loss of power, then jumps to normal with the exception of it feeling slower. when this hesitation occurs the engine light pops on for a sec then turns off. the engine codes read: 69 knock, 70knock, and mass air flow...........could it do something with valve timing???

Bruce
07-24-2008, 12:05 PM
rpms seem to hesitate at around 3000rpm, loss of power, then jumps to normal with the exception of it feeling slower. when this hesitation occurs the engine light pops on for a sec then turns off. the engine codes read: 69 knock, 70knock, and mass air flow...........could it do something with valve timing???

I was being sarcastic...the knock sensor and MAF codes means the knock sensors and MAF are bad. Replace them.

jconm3
07-24-2008, 01:47 PM
cool thanks, i herd that some how an MAF from a 325 would increase power?? is this true??

Bruce
07-24-2008, 01:52 PM
cool thanks, i herd that some how an MAF from a 325 would increase power?? is this true??

how would an MAF from a car that makes 50 less HP stock make the M3 have more power?

Pinecone
07-27-2008, 04:58 AM
A MAF from a 540 can, with other mods make more HP. But even better is a Euro M3 MAF. See Turner Motorsport or BimmerWorld for packages.