Tuning with Wideband. Quick question.

[Cody D]

I'm using my AEM wideband to tune, my stock o2 sensor seems pooched. Should I just park the car untill I get the stock o2 sensor replaced or can I tune with just my wideband. At WOT the car feels good and reads good mixture untill 5000 rpm where it just drops off, it's not as harsh as fuel cut, but it's very noticeable. Also when the car hits 5000 rpm the wideband is showing pegged rich.


My car:

6 bolt
T3/T4 setup
Walbro 255lph Pump, FIC 650cc Injectors, and my AFPR set to 38 at idle.
I'm running my MAFT Translator at 0's for all settings.

 

[heavypedalmuzic]

hey im having a similiar problem. the boost cpntroller is set at 15psi, the car feel great up to about 4500 rpm the boost shoots up to about 20psi then down to 10psi. the car just seem to have lost most of the power. also the air/fuel gauge becomes pinned to fully rich.

im guessing it could be a bad o2 sensor also, a boost leak or ext. wastegate spring problem or a combination of the 3.

 

[gamingguru]

you need to get your stock front O2 sensor fixed/feplaced before you try and tune your car any more. I have a almost new one that I could let go. PM me if you are interested.

 

[Mackzero]

Doesn't your AEM wideband have a narrowband O2 output to go to the cars ecu? My PLX does. That is what you should be using. No need for the crappy factory O2 sensor then.

 

[Snail Tuning]

Doesn't your AEM wideband have a narrowband O2 output to go to the cars ecu? My PLX does. That is what you should be using. No need for the crappy factory O2 sensor then.

yeah my o2 sensor got shreded, so i just use my zietronix narrow band output for now. untill i get enough for a factory replacement.