Down here, and I think elsewhere, you're allowed to have only one "ready" flag(code) not satisfied 2001 and up. MY2000 and down (OBD2) you're allowed two. A CEL from a P-code is going to be a different animal than what you're dealing with. You just don't have enough "readys" with a missing rear O2, so unless you umm, know-a-guy, you're not gonna have much luck without a different tune to turn the rear O2 back on and a cat.

Check your DMV to make sure; but I think that's what you're dealing-with.

1. see above
2. probably

Slip fit means no welding, clamp-type, from the devil himself if you try to disassemble.

 

not true, i've got evap turned off on mine... you can have one code pending at all times... depending on the year you can have up to two codes pending...

 

Umm what I wrote is true, and you pretty much repeated what I wrote... One allowed, two depending upon year. They're not codes btw. They're ready flags, yes/no, indicating that you've completed that particular drive cycle test or not.

 

Return the cat and buy this!

 

or buy two spark-plug anti-foulers and stack them in the cat bung..

 

the underlying issue is that the rear o2 was "shut off". when this was starting to be done years ago, the issue was that you get an automatic fail for having a required system that shows as basically unresponsive....not as "not ready".

you have to have the ecu reprogrammed to not have the rear o2 shutoff, then space the sensor or such.

 

This.

This is exactly what I had to do in 2006.

 

yeah...its why i spent 3 months trying to pass NYS inspection one year. then when i got the ecu redone, i found out the "race cat" had melted and exploded out the tailpipe during road tuning :roll:

 

Anti-foulers or a dealer license are you're best bet.

Local TSN guy runs his Holset 9-3 on a dealer plate to avoid emissions.....

 

Anti-foulers or a dealer license are you're best bet.

Local TSN guy runs his Holset 9-3 on a dealer plate to avoid emissions.....

That's really nice that you're ratting him out with the pic of the plate.

 

Gee, NY sure is hard in emissions.

We got nothing like that over here. The local mechanic I go to (my mate) doesn't even look at my car for it's yearly inspection. He just writes me up a slip. But he also knows that I am a car nut and all my cars are spot on.

 

New York is what i would call middle if the road. There are easier states and much worse states

 

spark plug nonfoulers do the job nicely

 

yup. mine passes this way i have no cat.

 

The solution as I see it is to turn the sensor on and then re-write the parameters governing the pass/fail internal diagnostic. This diagnostic is what throws a flag in the first place. What would be elegant is to write in the binary or somewhere in the cracks of OBDII, parameters from -2volts to 100 volts=pass.
That way it is "on" and always passes while essentially performing as if it were off. Anyone know how to do that?
-Cm

 

I believe you can leave it on and adjust the measurement window that it reports as ok, at least that's how I was told one of my 9000's was setup. But I think that will just allow a high flow car, not cat less.