ok so i just had my MAF cleaned because i had a check up. and it ran much better. shifted more smoothly. but now when i'm on the free way. when i push down on the pedal a little bit so i can accelerate faster like 50% throttle, it starts to like...bog down? or sumtin. like start stumbling over itself at certain points. no clue why though...anyone? was gonna take it back to get the grounding point for the tranny checked because on the consumerguideauto.com thing it said it had to be changed.

anyone know why this would be happening? i just changed my spark plugs about like 4-5 oil changes ago. did a seafoam, but i don't think it'd foul it up that bad no?

Peace out

 

MAF's are very picky... given that this happened immediately after it was "cleaned" I would suspect damage to the MAF... any chance you have access to a scantool to watch the MAF frequency as you drive?

Also, make sure it's completely plugged in - disconnect/reconnect to ensure it is tight...

That type of bucking at partial throttle does sound like a bad MAF...

 

yeah i thikn it's a bad MAF too. i just remembered i had that other problem in another car of ours. damm. now way to fix a MAF i'm guessing? just have to buy another off ebay or sumtin i guessing?

Peace out

 

What did you use to clean the MAF?

 

The SCs don't have the traditional metal wire MAFS. They use some weird air vortex nonsense (its nonsense cause i don't understand it). They are very finicky and don't really need cleaning. I had some weird stumbling after I cleaned my MAFS also. You may need to get a replacement.

 

It is a Karman Vortex air flow meter (AFM) with a piezoelectric element.

Essentially a photocoupler LED and metal foil mirror which are used to detect changes in the vortices.

Clean at your peril.

 

So would CRC maf cleaner be ok for the karman vortex afm?

 

In my real world experience, no it is not!!
The CRC product damaged my AFM.