My d@mn ID2000's cold start idle at 10.0 idle AF and we cant lean them out anymore and it stays there until the car is completely hot (about 15 minutes to get there) and then goes to around 13.5 at idle, but still bounces down to around 12.5 at times. I'm on e85 btw. It drives me nuts and I'm hoping this spring we can redo my resolution to a lower number to get more adjustability to the injectors and work this out because it drives me nuts and worries me. I can live with the 12.5-13.5 idle AF after fully hot but the 10.0 all the way through warmup is just stupid.

 

What o2 sensor do you have feeding it?

 

im not sure, im assuming the 02 from the downpipe. voltage is only .02 from that o2 #1 though when i look at the sensor tab on the aem tuner sensor.

if o2 FB control is turn off, will it effect my car? like i said, i been driving my car for a while now and i just notice that today.

 

Which AEM box are you using?

 

aem ems series 2

 

What I'm getting at here is, does your aem box support a wideband O2?

 

it should be, it the newest series.

 

i don't know if the o2 sensors are based off of relative plausibility or actual values...that's kinda hard to discern in this situation. if it's reading actual values, it shouldn't need any feedback. and remember, o2 voltages sweep so furiously that sometimes it won't register anything other than .2V. Rev the engine up to around 4-5k RPM. if the voltage output stays at .2V, then your o2 sensor is toast.

 

I dont think the series 2 boxes are available with the uego, unless they released something new which i doubt.

 

Yeah