Sometimes widebands will act up if they are getting incorrect voltage at the gauge/sensor.

 

Update.

No matter what power source line I try under the dash it makes the turbo timer count up and the wideband does not read correctly as a result. I can not locate a power source under the dash that does not make the turbo timer count up, very frustrating.

Any ideas?

 

what have you tried? where is your ground? have you tried the empty slot in the fuse panel for power?

 

I tried nearly every damn power wire under the dash. Problem is the Greddy TT harness goes into the main ignition wire that powers all under dash wires.

I just unplugged the TT and now the wideband works perfect. Plus the harness back in and the TT counts up and the wideband goes bannanas.

 

It's probably not your power. My wideband is hooked up to the cigarette light power source along with couple other things. At this point you should really test your sensor like I posted on the first page.

 

Not the wideband. I unplugged the TT from the harness and now the wideband works perfect.

I want to hear from people who have run a Greddy TT and a AEM wideband together.

 

Did you try that o2 test?

 

Yes, O2 is functioning fine. It also works fine now on the install but the TT is no longer installed.