Heat16
Probationary Member
- 12
- 1
- Jul 16, 2018
-
Rochelle Park,
New_Jersey
Hey All I read a bunch of threads of people seeing similar issues with the MTX-L and other widebands, but none of the resolutions seem to be working for my setup.
Here's what's going on:
I have the MTX-L O2 sensor in the stock O2 sensor location.
I do NOT have a down pipe installed currently (the stock one is way rusted out and I wanted to get some other bits of the build sorted out before I purchases a new one).
I've done multiple free-air calibrations of the wideband as per the manual.
With the car idling (roughly, just got the new engine running two weeks ago) the Wideband is pegged at 22.4.
I also have it wired into pin 76 on my ECU and it's showing the same full lean results in ECMLink.
I've performed the following troubleshooting steps so far:
-Calibrated the Wideband multiple times.
-Unplugged the O2 sensor harness from the back of the gauge, turned the car on until i got an error code on the gauge, and then performed a calibration again
-Wrapped the O2 sensor in a towel with some brake cleaner (This actually gets the gauge to read values in the 10-14 range)
-Stuck the O2 sensor in the tail pipe of another running car (This also gets the gauge to read values in the 10-12 range)
For the life of me I cant figure out why when the sensor is screwed into my O2 housing, it reads full lean. I have a feeling that it has something to do with my lack of a down pipe and the sensor being in the stock location, relatively close to the open air. If that's the case though, I feel like sticking it in the tail pipe of another car shouldn't have worked?
Any suggestions are greatly appreciated.
Thanks!
Here's what's going on:
I have the MTX-L O2 sensor in the stock O2 sensor location.
I do NOT have a down pipe installed currently (the stock one is way rusted out and I wanted to get some other bits of the build sorted out before I purchases a new one).
I've done multiple free-air calibrations of the wideband as per the manual.
With the car idling (roughly, just got the new engine running two weeks ago) the Wideband is pegged at 22.4.
I also have it wired into pin 76 on my ECU and it's showing the same full lean results in ECMLink.
I've performed the following troubleshooting steps so far:
-Calibrated the Wideband multiple times.
-Unplugged the O2 sensor harness from the back of the gauge, turned the car on until i got an error code on the gauge, and then performed a calibration again
-Wrapped the O2 sensor in a towel with some brake cleaner (This actually gets the gauge to read values in the 10-14 range)
-Stuck the O2 sensor in the tail pipe of another running car (This also gets the gauge to read values in the 10-12 range)
For the life of me I cant figure out why when the sensor is screwed into my O2 housing, it reads full lean. I have a feeling that it has something to do with my lack of a down pipe and the sensor being in the stock location, relatively close to the open air. If that's the case though, I feel like sticking it in the tail pipe of another car shouldn't have worked?
Any suggestions are greatly appreciated.
Thanks!