I never touched the fuses at all, Ill check but I doubt that the factory installed the fuses wrong.

 

I didn't mean that the fuse was installed incorrectly. I ment that it might be blown. Since you didn't mess with the fuses it doesn't jump out as the first place to look but its an easy place to check. If its not that next step would be to look and see if its a defective fouler. O2 sensors just don't usually go bad this early in a cars lifespan.

 

Ill check the fuses then tomororw mornin and see if it could be blown. Im gonan recheck the foulers this weekend and see if theyre leaking or anything. I did before hear some on the forum that had a revup mention this but forget what the reason for theirs was. Hopefully I can find a solution soon.

 

hey which fuse is the o2 sensor one?

 

Same thing is currently happening to me on my 06 revup. I installed the non-foulers the same way and right about 120 miles i threw a CEL. I reset the ecu and went close to 200 miles before it returned. After resetting it the last time ive gone over 400 miles and it still hasnt turned back on.

 

Ugh. I hope I don't have any issues when I get mine installed.

 

Again anyone kno which fuse the o2 sensors are in so i kno which one to check? Or anyone else know wat it could be?

 

bump

 

I'm wondering if the '06 is just more sensitive to emissions...I've got 2 ideas

1) buy another set of non-foulers and use a smaller diameter drill bit (a smaller hole should furthert reduce the amount of real exhuast the O2 sensors are sampling.

2) maybe Nissan has put another logic in the system that can tell the emissions are too low...this way it knows if someone is trying to trick it. (Wonder what would happen if you left the O2 sensors plugged in eletrically, but isolated from the exhaust)

-Peter

 

I know the second one wont work because when we first did the test pipes on my Z we had to go get 3 bolts for the one side and just left the o2 sensors plug into the car but not into the pipes and thats when i 1st threw the code, reset it and had the test pipes in then, did the foulers and then the cel came on again, so im assuming that it wont work havin them out. I will try the smaller hole tho maybe that will work.

 

The reason 03's and 04's don't usually get the CEL and the 04.5+'s do, is because since the 04.5 model years they have wideband O2 sensors in the cats. These extra 02 sensors are what cause the CEL light for us and are the reason we need to do the non-foulers.

 

yea we know this, but have they changed on the 06's or wat because even with the foulers we still get cels

 

I know that +'04.5 model have the wideband O2 sensors, and since if you leave the O2 sensors completely off, you still get a CEL, that means the ECU has a high and low limit of emissions (I'd assume those limits are compared to the O2 sensors higher up before the cats).

--now you just need to figure out if the ECU thinks you're exhuast has too much emissions or too low...(I wonder if it would through the same code, or 2 different codes for the CEL; that would at least point you in the right direction)

too high --> smaller hole in non-fouler
too low --> bigger hole in non-fouler

*My general assumption is that the non-foulers are in essence diluting the exhaust flow providing the O2 sensor with cleaner exhaust.

good luck!

-Peter

 

Well when i cleared it with my buddies scanner at autozone it came back on and i have the "normal" hole on the non fouler so ill assume it needs to be smaller. I also had this idea, could it work if I just used 03 year sensors and plug them into the car, or wont the harnesses fit, or if they do fit, do you think that the ecu is programd different?

 

yeah my friends 05 conv kept doing that he had to get it flashed, with a AAM flash to get the codes to go away from what he told me! i hear get a utec lol

 

Well I have an 05 and will be getting TP's soon and using non-foulers, so if I have the same problem, I'll let you guys know.

 

anyone think the 03 sensors would be worth a shot, or are the ecus going to kno the difference?

 

I don't think using an '03 O2 sensor would work...it's not a wideband sensor, so I doubt the O2 sensor output would be the same. Plus, I assume the logic for what O2 sensor is still kept in the ECU...seems like it'll throw a CEL any time the emissions are outside of a predefined range.

 

Here's something you can try.

I'm not sure it will necessarily work but its something I learned from my combustion modeling days.

Lightly pack the inside of the NON-FOULERS with (heavy guage) stainless steel borillo pad. The objective is to create a small settling chamber with reduced turbulence and a longer residence time for the gaseous reactantants to go to completion before they come in contact with the sensor.

Only use the heavy guage borrillo stainless material. It won't burn or get blown out of the open end of the non-fouler.

It may not work but it won't hurt to try.

 

I tried the resetting the battery over night and the light came back on after only 8 miles of driving? WAt the hell? haha, its so frustrating!!!! Nothing is working, guess Ill have to have Nissan look at it when it goes in for the oil change to see if maybe a sensor is damaged then. Im now that it is damaged becuz atleast ill be able to fix it then, if its not im gonna be pissed cuz ill still have no solution for this. By any chance are there o2 sims out there for our cars?