clean98z-28

I just recently purchased a new screened maf to replace my descreened one now. the car detonates like crazy loses all power up top i always run 91 octane its all we got in az no 93. The maf is from a 99 vette dont know if that makes a difference

thunderstruck507

iTrader: (18)

Have you tried putting the old one back on or unplugging it completely?

clean98z-28

Im going to try the old one when i get home. But wont unplugging it make it throw a code and run like crap?

Endrance

Yes, it will throw a code, but no it will actually make your car run like a god.

thunderstruck507

iTrader: (18)

Unless something else is really wrong unplugging it will send the car into VE only mode which is a table programmed by GM to estimate air/fuel to make the car run.

It will set a code for MAF failure but should run decent. If it runs like crap with either the other MAF or MAF unplugged, you need to get someone with a good scanner to help diagnose the cause.

This is all assuming you didn't just get some crap gas...it happens and no brand is safe.

clean98z-28

I'll throw the old Maf in and start it unplugged . Really appreciatehe help guys.

astro11271984

iTrader: (5)

Arent the vette maf 85mm i thought you had to get tuned witg diffrent tables if you go bigger

clean98z-28

That is on newer vettes its from a 99 same size as my stock one .

clean98z-28

Well ran normal with it unplugged . Still had a light detonation though.