check engine light, ref MAF sensor

graz · 07-15-2009

maf sensor posistion.
i got the oem stock air box from a v8 gt, i attached to the stock v6 inlet hose to the t.b. it keeps tripping code / check engine light coming on. i know the v8 box inlet [where the hose clamps on] is a little bigger then the v6, but would that little bit of diff. do this.
the maf fits the v8 box,and yes i have it installed the right way.
it never did this until i messed around with it

any one have any advise? or just find the right v6 box to re-install !
thank you

**stlwagon** · 07-15-2009

Are you using the GT airtube/MAF housing too?

graz · 07-15-2009

yeah where the maf sensor attaches to the lid of the air box.
it has to be the issue,it never did this until i changed to a larger size ! what do you think?

Torch_Vert · 07-15-2009

The larger GT MAF housing is messing up the readings the factory tune is expecting to see from the stock 4.0 MAF housing (yes, it IS enough to do that)

Your choices are put a 4.0 airbox lid back on the car, or get a dyno shop to retune it for the GT MAF housing.

amustangrocks · 07-15-2009

or maybe its time for a cai?

**stlwagon** · 07-15-2009

These cars are very touchy when it comes to MAFs.

Torch_Vert · 07-15-2009

Quote:

Originally Posted by amustangrocks

or maybe its time for a cai?

A good point, but every CAI worth spit also requires a retune. He's either got to go back to stock, or sink some semi-serious $$$ into upgrading however you slice it

graz · 07-15-2009

agreed,finding that maf is very sensitive to change.
going to get the v6 oem setup from 07bluemustang,getting it back to stock [sort of] january i turn in,getting new 2010 gt,I HOPE!

THANK YOU ALL FOR YOUR ADVICE