I don’t know where there is a dyno in my area but I might decide to take my car to a dyno for research purposes.
Do it for science bro
As of now, the 2 people (acid.fly and myself) that I'm aware of that has this catted downpipe installed both experience the CEL, so you're likely to get the same issue as well. I'll keep you updated on whether turning it works.
I wonder if anybody knew what codes were coming up without the defouler
Hmm I hope it does to. Thanks for the updatesI don't have any insight to that, but I can confirm that my CEL code is the same one that the other guy has.
Also, CEL came on again, so I turned the defouler clockwise again for a 3rd time. It won't go any further than that, so let's hope it works this time.
Unfortunately it came on again, so hopefully @RV6 can chime in with some insight.
Yeah hopefully they can figure it out. But it might be up to the feedback of the customers to figure it out. I looked online and there are different designs of defoulers. Maybe the one we got just isn’t the right one for the application. Maybe we need a shorter one that allows the oxygen sensor to get a little closer to the stream. I’m no expert but that’s just a guess
Isnt it possible to just disable the secondary O2 sensor from Ktuner and have peace of mind?I don't have any insight to that, but I can confirm that my CEL code is the same one that the other guy has.
Also, CEL came on again, so I turned the defouler clockwise again for a 3rd time. It won't go any further than that, so let's hope it works this time.
It is, but I don't think that will pass state inspection without having to tune it to disable the code and disconnect the battery to reset the ECU right before every inspection, and re-tuning it afterwards to disable the CEL again. Ideally hoping to avoid that annoying process if possible.
You should be able to adjust defouler without removing the downpipe. However you will need need to remove the O2 sensor.
It is strange that the test car has only had the CEL pop up once. Perhaps other mods and tuning might have something to do with it. That being said it probably wouldn't hurt to turn it in 1-2 turns since no one has gotten a P0420 yet. You get a P0420 when you read too much exhaust gasses.
How long does it usually take between reseting and the code coming up. I wonder if you can just put the sensor directly into the pipe to avoid this CEL. We also have a short spacer that might work instead of the angled one. How about you try putting the O2 sensor directly into the downpipe. If that doesn't work shoot me a PM and I will send you some short straight defoulers to try.
We do plan on dynoing the catted version in the future. We just moved to a new shop and still have to reconnect our dyno.
The test car is running find without CELs. Can you and acid.fly please post what mods you have.
I have some shorties we can try.
It seems like like everyone is able to go days before the CEL pops up. You can always enable the code and baby the car for ~20 miles until all the monitors set and pass the test before disabling it again.
After an ECU reset the CEL light will be off, but will come on the next day and stays on for that day and possibly the next day, then goes off for 1-2 days, then back on. I recall acid.fly reported the same thing happening to him too. Also, thanks for the support! I'll give that a try and post an update.
I have the AEM Intake installed along with KTuner. I'd imagine the downpipe was tested with KTuner in mind, so I wonder how much of a factor the AEM intake is.
lol, dyno. It's a monstrous improvement. Driving without it sucked. The car just zips and goes, and riiips at high rev. It's a joke to question if it's worth it. Tune, pipe and go.
