I have read up a little on the 04 modesl ECU with test pipes can anyone give me info on if the ECU with throw codes when you install test pipes of any kind or is it more brand specific?

Any info is appreciated.

 

All test pipes are the same, just what the name says, a pipe that is straight through with nothing in them, the only diference are the resonated ones but those just are gibber on the outside the inside is still unobstructed.

Some ECU's are throwing codes because it reads a before and aftr cat 02 sensor and expects a certain difference so without cats this will not be wgat it expects and throws the light, not all do it though, I have not had any lights to date.

 

We will see...

 

Hey Josh-

Your new wheels look good!


Hows it goin?

 

I have been good how did that stuff get resolved or no? I have been busy getting this thing twn turbo charged so it has been busy.

 

I got codes with the Mines test pipes and none with the Labree resonates test pipes. I think the flow disruption in the resonated pipes more closely mimmicks the cats effect on exhaust flow so the ecu is less likely to throw a code.

 

I installed the Kinetix Resonated Test pipes when I installed the Vortech kit and I have NEVER seen a CEL since.

 

hit or miss...mine come and go.....

no cels for about 3000miles so far.


As mentioned, all test pipes are the same in terms of function.

 

I have Helix test pipes with Vortech supercharger. Once awhile it will throw a cell...but will go off after 200 miles. It's only happened twice.

 

In the morning AM whne I start the car it goes away for a second but I ordered the O2 sims anyway so I will keep you updated ont eh status of the Sims.

 

let me know because i also have an o4 with test pipes throwing a code

 

I had the sims installed last night and have not had a code as of yet so it seems to be working. I would recommend these to anyone. I know there are some sites that are selling them for 45+ dollars for each one. I have found a site that allows you to have one sim for single or dual exhaust. I have purchased this O2 sim and it works great, and it also costs less than if you went with another brand that costed you four times as much. Here is what I mean:

I looked around for many O2 Simulators and found only a select few. In those I found Casper Electronics.com was suggested on this forum but it takes two to trick the ECU into thinking it is got the right signal. On an alternate site I found O2 Simulators.com and they have one that is gauranteed to work or your money back and it works on both single or dual echaust and it only takes one box to do it.

Just my opinion but it seems to me that 30.00 bucks shipped is better than 110.00 shipped and it only cost me 30.00 bucks to have my sims put in and also with that my wideband as well. So even with install it was 60.00 so that is stilll less than the other guys. You can also get one from a guy named Skidazzle on the forum he makes them but I am not sure if it is for 04 or just 03 model Zs.

Thanks and hope this info is helpful.

Links to sites to check out info on O2 Sumilators

O2 Simulators.com


Casper Electronics.com