fool o2 sensor rear 95-97 no cats sym
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None of those in the link are for a Toyota?
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- #23
I don't see anything that is wired. What part are you talking about?
Sorry, the adapter is not listed there only the threaded simulator. Here is what we did to install, we first fitted the O2 sensor to a threaded adapter which connects with the two nuts. Then we connected the the same type of simulator you see in that link inline and then used the same 2 hole adapter to connect back to the exhaust pipe. The link only shows the simulator itself for threaded type application. Sorry, but I do not have the 2 hole adapter on our site and I do not have one currently in stock to take a pic of.
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- #25
So it sounds like you still use the oxygen sensor and put it into some adapter that then goes into a pipe then put that pipe other end into another adapter that then goes back into the exhaust pipe.
So is the basics here to keep the old oxygen sensor and just give a smaller exposure chamber such that it will think there is more resistance or something.
If so this is not really a electronic wired trick, but a mechanical trick, correct?
So is the basics here to keep the old oxygen sensor and just give a smaller exposure chamber such that it will think there is more resistance or something.
If so this is not really a electronic wired trick, but a mechanical trick, correct?
Yes, exactly right. Has to be a functioning O2 sensor plugged in. Nothing electrical is connected.
So.. what was the code?
02 sensor spacer?
I talked a local race shop here in Kansas City that specializes in Lotus which uses a toyota engine management system. thinking they will know what sim to use. they use these extensions as well. get it out of the flow and it stays happy for the post cat O2
I have tried that. NOt too extreme, but i spaced the sensor off as far as i could and still have the PO 420 code come on every so often.
Baktash says he has a spacer that will work.
Again, my rear O2 is zip tied to the frame and it's been like that for 500-1000 miles. No CEL.
$10-$15 to make on your own from radio shack parts.
$10-$15 to make on your own from radio shack parts.
No, I have a business and overhead to cover 
Forgive my ignorance but it sounds like the second O2 just needs to be hot and that is sufficient to make the ECU happy? It doesn't really need to be in the exhaust air path?
I have a hollowed cat so I need to do something about my P420 (catalyst below threshold).
Which part should I order from your store? I'll try creating the RC circuit first to see if that works. This one is easy to make link
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I was also getting P420 few months ago but it hasn't been back since I cleared it. I also swapped back and forth between the OEM MAF and LT's (newly bored ID) MAF housing with suggested sensor...that may have something to do with it.
In any case, if you put on a simulator? How is STFT1 and LTFT1 being calculated? Aren't you eventually gonna get codes related to that (rich/lean)?
In any case, if you put on a simulator? How is STFT1 and LTFT1 being calculated? Aren't you eventually gonna get codes related to that (rich/lean)?
Fuel trims have nothing to do with o2 #2. It is basically useless and only serves to tell the ecu how much air flow is going through the cat to determine if the cat could have failed.
Rear only.
Riad,
Click on the link I provided above. #2 sensor stays put, just the signal to the ECU gets conditioned.