miles4

I’m putting an lq4 ina squarebody. I have the pcm and harness from doner truck . But think I will get new harness made. Either way what oxygen sensors do I need. Stock for donor engine. Only the fronts ??? All input appreciated. Thanks

G Atsma

If you are not running converters, you do not need rear O2 sensors. The rear sensor function is strictly to monitor converter efficiency.

B52bombardier1

Buy the O2 sensors that fit your harness connectors. And many of them vary in wire length from the connector to the sensor so have some idea on what you need for a length.

Rick

Fairbanks346

iTrader: (2)

Just get the sensors for the year, make, and model of your harness and ecm and you'll have no issues. On another note make sure and get a quality sensor from one of the name brand manufacturers, don't trust the cheap ones, they are hit or miss. Good luck, Michael

miles4

Thank you