i have a 97 isuzu rodeo with the 3.2 v6 with the 5 speed manual.. first off to let you know what i did so far. i had to replace my clutch because it didnt go into gear i found out it was the throwout bearing and the pressure plate that went out not the clutch itself but any way i removed the transmission along with the o2 sensor harness and reverse light wiring and when i put the transmission back in i forgot to tape the wires or do anything to indicate where the wires should go... now my predicament!! im not to sure i wired up the sensors right i just went by how long they were and assumed they met where there wasnt any stress on the wiring but good connections. first when i installed everything 2 CEL codes popped p0135 (heater sensor) and p0146(bank 1 sensor 3 no activity) i got rid of the p0135 by replacing the sensor because one of the wires got clipped while messing with the transmission somehow.. now all thats left is the p0146 no activity and its after the cat..

i read somewhere that might be because either the cat is bad or the sensor.. but thats not why i posted this.. my question is can anyone verify that i plugged in the harness correctly im wondering if i did the process correctly and if thats the reason why my cel is on? thank you

 

The sensor wires transmit the signal back to the engines computer, and if an engine knock (caused by a too lean condition) is detected, it will tell the fuel system to enrich it self, by added more fuel. and this saves the engine from damage.