Zeitronix w/ O2 sensor simulation CEL

[RiGs2G]

I tried posting this in the tech section but aparently, after 2 years, Im still a newbie... Anyway, My car a couple weeks ago threw a CEL P0135. I have the Zeitronix simulating the narrowband (stock) O2 sensor. That made it seem as if the wideband O2 sensor was bad. So i replaced the Wideband O2 sensor. It is still throwing a CEL for the same thing. I looked on VFAQ at the ECU pin outs and Pin 60 is the O2 sensor heater (front) Could the stock O2 sensor throw the P0135 code, because the wideband only taps into the signal wire and not the heater wire? Honestly, I feel retarded because I cant figure this out. The wires on the stock O2 sensor melted (from laying on the exhaust, but it shouldnt matter because the wideband is telling the ECU whats going on) so I wraped them up and the CEL is still there. I also tired just unplugging the stock O2 sensor, same thing. Any ideas, would be greatly appreciated. I have been running the wideband for almost a year and it never threw a CEL before. Thanks

Mike

 

[topcat92]

i think your prob came with the melted wires because generally the ecu is looking for a load on the heater circuit so if the wiring is not intact open or shorted or unplugged there will be no load so you might have to get a new narrow sensor just to use it for the heater cause you have strict emissions there or wire in a resistor to trick the ecu be careful with the resistance it might do harm if its the wrong amount i know its late haha sorry

 

[DGajre777]

The o2 sensor is made up of 2 parts, the signal and the heater. Wire up a heater simulator... http://www.dsmtuners.com/forums/articles-electrical-wiring/290745-o2-simulator-install-pics.html

Get 4 of those white resistors instead of 3, 4 of them makes things a little cooler than 3, besides they come in packs of 2 anyways.