Postby Hook » September 15th, 2010, 11:33 pm
The pics I'm getting of the LS 05 have no flange...this requires the user to either have one made or scrap the old sensor and re-use the old flange or weld on a bung with a threaded end to mount the sensor.
Also I'm getting a lot of Honda guys using them. Honda's lambda sensors use a different system where two wires are heater, one's signal and the other's ground. The Toyota sensors have two heater, one signal and one's a +1V reference voltage.
Both are the same zirconium oxide type oxygen sensor, except the grounded one has a section to the rear of the sensor exposing the sensing element to atmosphere (a voltage due to the oxygen differential is generated across the oxide) while the reference voltage one uses the 1V as, well, a reference voltage and is not exposed to air.
I still say browse the online parts places with those Toyota part numbers (one from the thread and the other form the picture) and try as much as possible to get an OEM one in case u end up bad spending.