O2

Mista 2 · 11-07-2007, 03:16 AM

ok as some of you know i am have put a 20V black top into my AW11, i have just put a new exhaust on and i need a new oxygen sensor. being in australia i cant find a part number. so, if anyone could give me an aftermarket part number then that would be gr8 or if they could just tell me and engine that would have the same O2, again that would be gr8.

thanks

Mista 2
Jordan

mr220v · 11-07-2007, 11:16 AM

If you want a quick fix, just use your original 1wire sensor. The blacktop ecu doesn't have a ground for the o2 signal, so that wire is just grounded into the harness on one of the main ecu ground wires. The only difference with a 1 wire is that it grounds to the exhaust instead of the head, and, of course, there is no heater element.

Now, you will still get code 21 for lack of a heater element, but the ecu still seems to accept the signal.

If you want to use a normal 4wire o2, a previa or 4runner o2 works fine. Both are the flange mounting type. If you want a screw-in type, late nineties camrys work too. The wire order for all these sensors are the same. At most, you'd have to trim some of the keyways on the o2's plug.

11-07-2007, 03:16 AM	#1 (permalink)
Mista 2 Cage Fighter Join Date: Nov 2006 Location: Adelaide, Australia Posts: 461 Thanks: 16 Thanked 21 Times in 21 Posts My Google Map iTrader Rating: (0/0% )	O2 ok as some of you know i am have put a 20V black top into my AW11, i have just put a new exhaust on and i need a new oxygen sensor. being in australia i cant find a part number. so, if anyone could give me an aftermarket part number then that would be gr8 or if they could just tell me and engine that would have the same O2, again that would be gr8. thanks Mista 2 Jordan

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

11-07-2007, 11:16 AM	#2 (permalink)
mr220v Beams Owners Group Join Date: Mar 2006 Posts: 1,791 Thanks: 13 Thanked 139 Times in 117 Posts iTrader Rating: (9/100% )	If you want a quick fix, just use your original 1wire sensor. The blacktop ecu doesn't have a ground for the o2 signal, so that wire is just grounded into the harness on one of the main ecu ground wires. The only difference with a 1 wire is that it grounds to the exhaust instead of the head, and, of course, there is no heater element. Now, you will still get code 21 for lack of a heater element, but the ecu still seems to accept the signal. If you want to use a normal 4wire o2, a previa or 4runner o2 works fine. Both are the flange mounting type. If you want a screw-in type, late nineties camrys work too. The wire order for all these sensors are the same. At most, you'd have to trim some of the keyways on the o2's plug.