O2 sensor wiring ?

[beans33]

Hey guys ive search a little bit but couldnt really find a definate answer. Can someone tell me what 3 wires on the ca harness goto(power,ground,heater) I ended up getting a crappy bosch sensor that has 4 wires(2 white,1 grey, 1 black). Im in school right now and dont have a way to look at the internet or fsm. Any help would be appreciated, Im trying to go through emissions tommorow morning Thanks guys

[boost_boy]

Hey guys ive search a little bit but couldnt really find a definate answer. Can someone tell me what 3 wires on the ca harness goto(power,ground,heater) I ended up getting a crappy bosch sensor that has 4 wires(2 white,1 grey, 1 black). Im in school right now and dont have a way to look at the internet or fsm. Any help would be appreciated, Im trying to go through emissions tommorow morning Thanks guys

Red= Power
White= Signal
Black= Ground

[mbmbmb23]

Hey guys ive search a little bit but couldnt really find a definate answer. Can someone tell me what 3 wires on the ca harness goto(power,ground,heater) I ended up getting a crappy bosch sensor that has 4 wires(2 white,1 grey, 1 black). Im in school right now and dont have a way to look at the internet or fsm. Any help would be appreciated, Im trying to go through emissions tommorow morning Thanks guys

Whats the part number on the Bosch unit and what car uses it specifically?

[beans33]

hey dee what are the wire colors on the CA harness and which goto red black and white?

[boost_boy]

hey dee what are the wire colors on the CA harness and which goto red black and white?

I'm out of harnesses that are assembled, so it will be hard to give you a correct answer. Just go to your car and test them, if it's possible.

[mydato]

Another trap for young players is many solder the signal wire from the sensor into the harness or conector. Do not do this as it changes the resistance value of the signal and the ECU will not run the correct mixtures in closed loop. Crimp the conection only then do a big skid and be happy...