Running rich and no idle when hot

[rs200]

well problem still exist.
I change spark plug today and idle is still on 10.50 - 11.30 AFR.
than we try to change:
maf sensor
injectors
POS
FPR
ISV
spark plug
ECU

all that parts are from friend s4, and his car run perfect..
so what can be a problem?

and we also check did FPR have good fuel lines for return to tank. and YES they are perfect..

please help..

[rs200]

please help me..

[karlblues2]

please help me..

Have you checked / changed the temp sensor?

[UrS4boy]

Have you checked / changed the temp sensor?

And by that, you mean the G62 at the back of the head, right?

But don't 3B's use the MFTS as well for an ECU input?

[rs200]

yes and I change temp. sensor G62 , and noting happend.. still the same..

what else can make that problem?