Both of these part #'s are shown for a 1994 LC. I can't afford to do Toyota parts at the moment so I am reading up on these different sensors. I have seen a thread on the 15728, but not too much info.
Anyone have experience with either of these universal fit O2's?
I have a couple of Bosch O2 sensors with only couple of hundred miles on them. They have the Toyota connectors on it so no cutting and splicing. I took them off and replaced with OEM after they kept throwing codes.
Denso appears to be the OEM. Why even bother with Bosch parts then?
Here are part #s I've found:
Denso #234-4157 (front)
Denso #234-4153 (rear)
Denso #234-4206 (universal, front or rear)
Just a disclaimer, I have no idea if those parts work with our vehicles. But if I were to need an O2 sensor I'd start there & do the leg work to make sure they work properly.
It seems the guys that aren't having luck with these are OBDII owners. I'm fairly certain that most of the old threads about this topic say not to use aftermarket O2's with OBDII.
Always check with C-Dan or somebody that gives good Toyota parts prices. I've found on many parts that I can get the OEM parts cheaper than aftermarket. Sometimes it's just a little bit more for OEM. Do your homework. I find that I don't enjoying doing jobs more than once, and on stuff that's a pain to replace, I go with the best. Like I said, I'm constantly surprised to find that the OEM is almost as cheap as the other stuff.
The O2 sensors were not that bad either for OEM vs. plug and play aftermarket like Bosch. I think they were about $75 for each Bosch, and I think about $115 ea for TOY parts from C-Dan.
I picked two denso sensors up from amazon, about $150 for both shipped. From my research they are OEM sensors, but i am waiting for my new exhaust to install them. The connectors and wire color codes as well as the wire length are exactly the same as the ones on my 97'. Got my fingers crossed
I've had the 15728's in my '93 LC for a month and have gone through two tanks of fuel.
So far no CEL has appeared. I need to use a couple more tanks of fuel to see if mileage has gone up any.
I also soldered the leads of the new sensors instead of using the supplied couplers and moved the sensors up to the exhaust manifold where the PAIR valve assembly use to be.
