2G Wideband/NarrowO2 Issues

[Alex Palomino]

Ok, So Ive ran into a weird issue with my new MTX-L. I've tried looking but haven't ran into an issue like mine. Basically Ive wired in my wideband into the front o2 (Pin 76) with the wiring as follows, Red-12v source, Black & White to the ground by the drivers side, Yellow- Pin 76 in my ECU. The problem i'm running into is that my o2 isn't cycling like it should, I've tried every configuration on dsmlink and nothing, when i try NBSim it wont go past .2v, and when I turn it off it wont go past .4v. What throws me off is that the gauge will still read an AF ratio of about 14.7 on idle but Dsmlink shows it at a solid 9:1. Im stumped, I've already tried changing configuring it with LM Programmer and nothing. Sensor is the Bosch LSU 4.2 and its been calibrated 3 times already. No Clue how to approach this from here. Ive also tried changing the yellow wire to the brown, and still nothings changed. Any insight?? :ROLLEYES:

 

[Dsmkauai]

Did you assign the mtx to pin 76 and save in link?

 

[Alex Palomino]

Did you assign the mtx to pin 76 and save in link?

You mean on the ecu inputs tab right? If so, yes ive assigned it to both linear WB and LC1, same result with both

 

[Dsmkauai]

http://www.ecmtuning.com/wiki/widebandbasics

 

[Alex Palomino]

http://www.ecmtuning.com/wiki/widebandbasics

I've gone through everything on there. I'm literally stumped. I figured a dead o2 but it's weird how the gauge still reads my afr. Nothing in LM programmer works either.

 

[Dsmkauai]

Do your stock o2 cycle in link before you switched? Make sure you don't have the o2 locked.