Nitto Mid-Pipe Check Engine Light fix

[at3GG]

To any who have the nitto, when you removed your stock mid, did you have a problem "unscrewing" the o2 sensor? I tried to remove it to wrap the midpipe with thermal wrap and it sun a couple of times then just seemed to wedge where it was. Anyone else have this happen?

To those with a custom midpipe...if i bring my car to have a custom mid made, should i assume that there will be no CEL issues or should i inform them of the issue? Also around how much did it run you guys? Thanks.

[Malaya1221]

jerkratt, need to use both of those defoulers...been using the defouler now for 1 week after i installed a new header, NO CEL!

kuro, u might just want to wait until the ecu relearns!

[Malaya1221]

^ didn't even notice that u only used one of them....yeah the other one might help!

[eTiMaGo]

Originally Posted by kurokoma-kun

meh! i got these ramps that make it easy to get under the car, and i kinda like messing with it

i put the 2nd antifouler on tonight, just had to drop the pipe off its hangers to get a bit more clearance

A woman who enjoys going down on her car...

[CASTREX]

Originally Posted by at3GG

To those with a custom midpipe...if i bring my car to have a custom mid made, should i assume that there will be no CEL issues or should i inform them of the issue? Also around how much did it run you guys? Thanks.

The CEL is NOT an issue... Is just the sensor doing it's job.

The function of the sensor behind the primary cat is to monitor the adecuate functionality of the cat converter.
When you remove / delete the cat converter the sensor obviously will sence a cat failure and throw a CEL.

The Nitto midpipe is a catless unit threfore it will trigger the CEL.

When you say you are going for a custom mide pipe are you planning to go catless also? If so you will have a CEL and you will need one of the already mentioned CEL fixes.

If you keep your cat or install a new cat to the custom midpipe you should be alright and will not need any fix.

Just my recomendation:

Keep the cat... the gains for going catless should be minimal on this engine. Just ask your shop to make your midpipe from the cat back...

[ROCKLAND TOYOTA]

Originally Posted by CASTREX

The CEL is NOT an issue... Is just the sensor doing it's job.

The function of the sensor behind the primary cat is to monitor the adecuate functionality of the cat converter.
When you remove / delete the cat converter the sensor obviously will sence a cat failure and throw a CEL.

The Nitto midpipe is a catless unit threfore it will trigger the CEL.

When you say you are going for a custom mide pipe are you planning to go catless also? If so you will have a CEL and you will need one of the already mentioned CEL fixes.

If you keep your cat or install a new cat to the custom midpipe you should be alright and will not need any fix.

Just my recomendation:

Keep the cat... the gains for going catless should be minimal on this engine. Just ask your shop to make your midpipe from the cat back...

besides that i do believe EVERYONE experiences a CEL with the defouler eventually.on the other hand the soldering of the wires looked to be a good deal though........

[Smokey159]

I wonder what the soldering of wires does to the fuel mappping, if anything.

[03Z33]

Originally Posted by Smokey159

I wonder what the soldering of wires does to the fuel mappping, if anything.

As stated above, the second O2 sensor does not affect fuel mapping in any way, it is only in place to confirm to the ECU that the catalytic convertor is in place and functioning properly. Even with this sensor completely removed your performance and fuel mileage will not change.

[largeorangefont]

Originally Posted by ROCKLAND TOYOTA

besides that i do believe EVERYONE experiences a CEL with the defouler eventually.on the other hand the soldering of the wires looked to be a good deal though........

No they don't. If you don't get a CEL in the first littel bit, you will probably never get one. I have been installing mechanical CEL fixes on my customer's cars for years. Some cars need 2, or the 90 degree bung method works as well.

I like the anti foulers better than the soldering method. The mechanical method can never fail.

[ROCKLAND TOYOTA]

Originally Posted by largeorangefont

No they don't. If you don't get a CEL in the first littel bit, you will probably never get one. I have been installing mechanical CEL fixes on my customer's cars for years. Some cars need 2, or the 90 degree bung method works as well.

I like the anti foulers better than the soldering method. The mechanical method can never fail.

REALLY, please elighten us as to who accomplished this.

[largeorangefont]

Originally Posted by ROCKLAND TOYOTA

REALLY, please elighten us as to who accomplished this.

How hard is it to understand.. 1 or 2 antifoulers move the o2 sensor far enough out of the exhaust stream to not throw a Cat Inefficiency CEL when you are running catless.

I've used this method on hundreds of cars.. Subarus, Evos, Toyotas, Mustangs etc.

I did this on my WRX about 6 years ago. I didnt know about antifoulers then, but this was cleaner.

[ROCKLAND TOYOTA]

Originally Posted by largeorangefont

How hard is it to understand.. 1 or 2 antifoulers move the o2 sensor far enough out of the exhaust stream to not throw a Cat Inefficiency CEL when you are running catless.

I've used this method on hundreds of cars.. Subarus, Evos, Toyotas, Mustangs etc.

I did this on my WRX about 6 years ago. I didnt know about antifoulers then, but this was cleaner.

YEAH, thats cool and all but what you fail to realize is the LEARNING ecu that will eventually catch on and prove my point......

[whooppee777]

Originally Posted by largeorangefont

How hard is it to understand.. 1 or 2 antifoulers move the o2 sensor far enough out of the exhaust stream to not throw a Cat Inefficiency CEL when you are running catless.

I've used this method on hundreds of cars.. Subarus, Evos, Toyotas, Mustangs etc.

I did this on my WRX about 6 years ago. I didnt know about antifoulers then, but this was cleaner.

if im not mistaken this is almost exactly like the piece that the wayne guy makes, the guy whose email i listed earlier

[ROCKLAND TOYOTA]

Originally Posted by kurokoma-kun

yay! 100 miles with both antifoulers and no cel... in your opinion, is this a permanent fix? any idea what i can expect at next year's emissions test?

if you have no problems GREAT but ive seen some on here who drove for 2 weeks with nothing and then BLAM...........

[ROCKLAND TOYOTA]

Originally Posted by kurokoma-kun

for me its an experiment, if this thing doesn't fix it then it will be time for plan B

however, i am wondering what you mean by BLAM something other than the cel go wrong?

NO it just happens all of a sudden......

[largeorangefont]

Originally Posted by kurokoma-kun

oh! innuendo, eh... what i meant to say was, i've enjoyed wrapping both hands around the shaft of a tool and getting myself a nice long, fat, steely, sizzlin hot piece of PIPE!




yay! 100 miles with both antifoulers and no cel... in your opinion, is this a permanent fix? any idea what i can expect at next year's emissions test?

You probably wont get a CEL , but if your state has a sniffer test, it will not pass without cats.