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Yeah, the machine can be used to do smog tests or emissions diagnostics, the "manual" mode you're talking about. What happens during a test is more complicated. There's another problem with what you posted though: O2 and rich mixtures don't go hand in hand. You can't have a rich mixture and...

He's right about using O2 but some other things don't add up. First, the composition of a stoichiometric exhaust stream sans catalyst contains little oxygen to begin with. Therefore the cat being empty has zero bearing on there being too much. All the empty cat would do is pass what O2 is coming...

The likely explanation is he got the gas wrong. Sort of makes the entire thread a waste of time but since that's probably what happened the irony is, assuming the engine is in fuel control, the new cat probably will fix it...

Except that has nothing to do with your problem...

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=23

Then everyone involved is just guessing. High Nox can be caused by several things. Bad EGR, running lean, or running hot. The cat can be at fault but usually isn't...

Post the test results.

^ So if they're not he's supposed to back them out?

They're right, it'll work fine. Replace the bracket (put it on the opposite side) and actuating arm with the old ones. The old arm will need to be flipped. Look at how the valve works and you'll see what I mean. Since the ports are slightly larger and thin walled either mold the hoses or just be...

Crack me up...

No problem. CRE is an authority on pugs...

Typical Sooner :icon_razz

Not necessarily so but it's true decel fuel cut is partly predicated on the TPS. I forget whether it uses IDL or VTA in conjunction with vehicle speed though. Fix the code and see what happens. You may get lucky...

^ This, although I will say there's lots of Russian music in the car and it gets listened to fairly often...

1) Since the ECU can't exert control over the fans it's not possible for it to turn them on. 2) There's no resetting code 51, there's only fixing it. 3) Timing can't be set with the IDL contact open. 4) Timing control will not behave correctly with the IDL contact open. 4) The ISC...

Can't say I see much resemblance...

Roloc...

Might try fixing the codes before asking for help. Seems to me the more intelligent approach. I might be confused though...

So your response to the MIL coming on was to buy a new ISCV? Interesting. I would have never thought of that...

^ I'm glad someone finally said it...