No O2 reading
 

Ok I have been trying to have Tom remote tune my car, but we have run into a snag. My ecu is not getting a reading from my O2 sensor. I have replaced the sensor, checked the fuse, and checked for power at the plug. I can't find anything wrong.

Anyone have this problem or maybe someone has a diagram of the ecu pin out from an 04? I need to check there and see if its getting a signal.

I really need help with this quick. We can't work more on the tune till we know the reading and its affecting my idle.

Anyone? I got a print out from Ford of the pinout, but I am still wondering if anyone else has had a problem like this?

No one has had a problem with stft1 reading?

Have you not gotten any CEL's?
Run the stock tune and see what happens...

He did go back to stock same thing

Tom

Yeah it really weird. And no CELs.

Ok went and scanned again for shits and giggles and it showed 2 codes. P2195 and P2196.
One means O2 stuck lean and the other means O2 stuck rich.

It makes sense to me if
you are having an connection problem. If I was you I would replace the cable to the sensor and check the ground.

Thats what I was thinking too. Unfortunately the print out Ford gave me does not show power or ground, just the 2 wires that go to ecu. I know which is power from checking it with a test light, but is the 4th wire ground or does it ground itself on the exhaust?

good question...don't know the answer