What are the indications of this??

 

Car won't start-idles funny- won't idle-3800 rpm hesitation.

What makes you think you have a bad AFM?

 

car has a weir surging problem but is well below where the secondarys kick in.

 

you mean like on a cold start it kinda bucks?

 

nah it only happens after it has warmed up to operating temp. i have a wideband and it shows that when it does this air fuel being in the 15's low 16's which is ungodly lean.

 

the s5 na's had afm failures, early on. the updated afm's have a white dot on em.

symptom is a bog/hesitation/flat spot on tip in, or off idle

 

Your sig is ironic considering you're wrong...

WFT?

You need to explain the symptoms a lot clearer than that.

 

Car as iam driving usually after sitting in a drive thru or sumthin when i go to take off will actally run really lean. Tis in turn causes a surging problem like a rocking motion like the car is out of gas or sumthin. just curious of what it could be.

 

sounds like an intake leak or vac leak to me