Originally Posted by 06stangGT

I've been trying to deal with this problem for 3 years now. I don't have headers. I have CAI , pulleys, pypes o/r H pipe.. currently I have brenspeeds tune with the rear o2s turned off. every year I have to take out the off road H pipe and install the factory pipe with cats. I have to load the emissions tune from them with the rear o2s turned on, drive it for 20-40 miles (depending on if you know how to do this) to reset all the monitors. once everything is in the ready state I have my tech inspect it, re install the off road pipe, re tune it.
I have non foulers installed. Purchased from brenspeed, and it still does not work. Now I do NOT have high flow cats installed. perhaps installing high flows from brenspeed into the off road pipe AND having the non foulers, is the next step to take without having to uninstall and reinstall the off road pipe each year

Originally Posted by doofoo

LOL - Kinda funny to read all the issues people are having here..

I had a 01 Lightning fully built engine/trans around 600WHP - No cats, longtube headers, whipple 2.3l s/c, sounded like a nascar. I took it in for inspection, they plugged in the OBD2 port - Done! Passed!

Are you guys really pulling all your stuff off to go through emissions?

Originally Posted by debit_free_2010

The surest way to prevent your failing for not ready O2 sensors is to have your tuner write them out of your tune.

I'm running an O/R X pipe and my I/M monitors are written out of my tune. When they plug the OBD2 reader in my catalyst status reads not supported and my inspection report sez passed.

Without cats you'll fail the visual so you'll need a shop that'll pass you and wont question why your monitors are NA.

The non fouler trick doesn't work as well on the S197 cars without making some tweaks to your tune to change O2 transport delay and heater duty cycle.

Originally Posted by timmbo

IMO, you shouldn't need non foulers on the stock Ford cat pipe. The non foulers are used mostly for those of us with headers and hi flow cats. You should pull those anti foulers out, disconnect the battery to reset the computer and start your drive cycle over again.

Originally Posted by 06stangGT

My tech looks pass the "visual problem" but the things Ive tried and the reputable tuning shops Ive gotten ahold of lead me to believe its nearly impossible with the S197 in NY. One shop I called in PA said they could take care of it no problem, once I said I live in NY, he said "no guarantees to pass there."

Originally Posted by 06stangGT

I have the non foulers installed on the Pypes O/R H pipe, not the stock ford catted pipe.

Also Im not sure the inspection is the same there as it is here.




Someone told me to try and double up the foulers. Is it worth a shot ?

Originally Posted by timmbo

You can try doubling up the anti foulers. I just can't believe they're gonna pass you without some sort of cat on it. Surely the rich fuel smell of a catless system is going to alert them to look under your car and find the cats missing.

Originally Posted by S197GT07

Lets face it, the visual is the easiest thing to pass, as long as you know the guy.