maf acting up after cai mod

creeperxr7

Registered User
i have the focus cai on yesterday i decided to put in the 45 in and set my filter in the fender well...... after driving on the freeway accelerating and coasting i seen my check engine come on then go off .... what i noticed that i was a pattern .. always after letting off the throttle when engine speed was around 65 --70 mph the check engine would come on then off right below 65. checked code . it was 66 c.. maf voltage under .04 volts within the last 80 cycles i believe was the description ... could the change of filter done that .. the maf is located before the bend. thank u
 
Sensitive MAF

I recently had the exact same problem but it was the modified MAF I installed.
If the bend is in front of the MAF you may get this type of malfunction.
One possibility to resolve it is to rotate your MAF 45 degrees.
I am not sure what you mean by " ...decided to put in the 45..."
If you have a pic of your setup LMK
Bill
 
I had a similar problem last year - double check to make sure the filter is still on there. I've got a ZR Intake and my cone filter had come off and was just sitting inside the bumper. When I'd be going down the highway, if I coasted for 1-2 seconds, the CEL would come on but after I got into the throttle, it would go back out.

Just a thought?

-Melon
 
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