I have been going nuts with this idle stuff for weeks now. I need some help. I have a built motor on boost. If specs are needed i can post them.

I am tuned on the FIC with pnp harness and I can not get the car to idle correctly. Been to 3 different tuners and none can get the car to idle correctly and they all have the car dumping fuel at cruising speeds.

At idle the car is running in the low 12's and cruising at 70mph are runs 11.5ish...obviously not where i need to be!

I also keep getting a CEL with the following: p2237 o2 sensor positive current control circuit / open - Bank 1 Sensor 1.

I have replaced the 1st o2 sensor yesterday and am still getting the same code.

I have tried running the car without the FIC and the car will idle perfectly and also not give me any codes. I also swapped out the FIC with a friends, I also swapped harnesses with another 07 with pnp harness and get the same codes and non abilitly to adjust the o2 map.

Anyone else have any idea's what it could be thats not allowing me to adjust the o2 map?

I can upload the cal file if anyone wants to see it.

Any advice and help would be appreciated.

 

What do you mean non-ability to adjust the 02 map?

 

Whenever I make a change to the o2 map nothing happens...a/f doesnt change.

 

Who has tried to tune your car?