DJBIGMIKE

Just wondering if you guys with the stage 1 kit get a CEL. My plans are to get a stage 0, the ZPI website says that it might couse a CEL. There is no mention of getting one withe the stage 1 kit.


any info would great!!

WeDriveScions

Same little issue... It's related to the second o2 sensor, it's an emissions code... cat below efficiency... doesn't effect anything but turning the light on...

The best fix is the antifouler o2 mod... should solve it right up.

DJBIGMIKE

cool

WeDriveScions

Yes, Yes they are.... you can also pick up a neet little tool from harbor freight for like 30 bucks that will read codes for you as well.... nice lil helper...

tCUZZ

why don't ZPI provide an antifouler or some sort of O2 extender like the one on the turbonetic kit? This would save alot of customer the hassle of fixing the cel themself.

It does effect engine performance. Toyota did not put a sensor there to throw a cel for nothing. If that were the case then Toyota could have save a good amount of $$$ not putting these sensor in the first place.

jwaggz82

iTrader: (1)

and cost only a few dollars.

rhythmnsmoke

You can go to your local auto parts store and pick up the little anti-foulers for $4 dollars. The only CEL code I have is not for the Sec. 02. Ironically it's for the first one. And this was when I DIDN'T do the anti-fouler mod on the sec. 02. If you get a CEL, and the code reads for the Primary Sensor 1 then it's more than likely that it's being thrown by the tune of the car. Very Rich conditions have caused the Primary Sen. to throw a code "basically saying the heat side of the primary sensor is not working". We replaced the sensor and cleared the code, but did not change the tune. The CEL went away, until I took the car around the block and let her rip for about 30-40min worth of driving. The car is really rich, causing the Primary Sensor to be all coated in black sut. Of course all the sut all over the sensor is going to cause it to read funny....lol. I'm getting another tune this week probably steal another Sensor from Kenny, and I will post up and let you know the outcome.


PS....just because it has a CEL dosen't mean you lack performance. I've had a CEL from day 1 of Boost, and you've see the cars we race.

WeDriveScions

You are absolutely incorrect in the fact that it effects engine performance... in regards to a CEL light being thrown for the second o2 sensor.. which many headers and turbos throw... Not even tied into the engine control system. It's a narrowband 02 sensor that's purely a neccesary diagnostic and emissions tool.

The Second O2 Sensor has no effect on engine performance, but it solely used as it is required for US emissions standards, to ensure the precat is functioning correctly... and throws a code if the precat malfunctions, or there is no precat there, as in the case of aftermarket header setups or turbo kits.

If you get a code from the first 02 sensor, that's where your engine performance is dependant, as the ECU makes adjustments to the fuel delivery as a result of the readings of that sensor. It's a proprietary designed toyota wideband O2 sensor, used to adjust mixture.

ZPI doesn't include the o2 antifouler for the 2nd sensor, cause... it's, for some reason, a bit random in regards to the fact that everyone doesn't get the code... some people have run a header setup with no code, and some get it right away...

Welcome to the world of aftermarket Turbos and all the fun that goes along with them

rhythmnsmoke

^^very well put.

tCUZZ

no you are wrong again here. Go do some research on closed loop.