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View Full Version : Check engine = O2 censor or Mass Flow... how do I know?


Motorhead350
07-28-2009, 02:01 PM
My car keep dying dispite the tune and the check engine light was on before. The tuner said it was because of a bad mass flow air censor or O2 censor. They probably got dirty when the car was running rich so I am guessing it's the O2 censor. Where is it located and can I clean it? If not should I buy a stock one or do I need a special one?

As far as the air censor goes I need a lightening one if it's bad. Does a Ford dealer stock those or do I need to go to a speed shop?

Or can I just clean all of these in a special way?

Anything you throw at me will help.

Thanks.
ImpalaSlayer
07-28-2009, 02:10 PM
what the code say?
LeoVampire
07-28-2009, 02:24 PM
My car keep dying dispite the tune and the check engine light was on before. The tuner said it was because of a bad mass flow air censor or O2 censor. They probably got dirty when the car was running rich so I am guessing it's the O2 censor. Where is it located and can I clean it? If not should I buy a stock one or do I need a special one?

As far as the air censor goes I need a lightening one if it's bad. Does a Ford dealer stock those or do I need to go to a speed shop?

Or can I just clean all of these in a special way?

Anything you throw at me will help.

Thanks.

If it is sucking in more than it is rated to handle it might set a code.
ImpalaSlayer
07-28-2009, 02:30 PM
Leo he said its a 90mm, i doubt thats the case
Motorhead350
07-28-2009, 02:37 PM
I am waiting to hear back from Bob. The guy who tuned my car. The Check engine light is off, but it's back to it's old ways... or I can wait a day and it'll be back on. I hate waiting for anything.
LeoVampire
07-28-2009, 03:02 PM
Leo he said its a 90mm, i doubt thats the case

Wouldn't be the first time I heard and or seen an MAF not being set properly out of a box or being improperly boxed in the first place.

But I didn't notice that he said it was a 90mm.
Motorhead350
07-29-2009, 06:27 PM
Zack is going to help me with this as always.

He never stops giving. :D
jdenning002
08-01-2009, 10:54 PM
post back after its fixed...
Mike
08-02-2009, 07:21 AM
Zack is going to help me with this as always.

He never stops giving. :D

I know what ya mean....he NEVER stops giving :D