Deadgame
Senior Member
- Joined
- May 20, 2018
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- 16
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- 90
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- Location
- San Antonio, TX
- Vehicle(s)
- 2018 CW FK8
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- #1
I installed the PRL DP/FP/intercooler and the car is running well. Thank you to Dennis at PRL for helping me troubleshoot the intercooler issue, which turned out to be nothing. I have a couple questions that I can’t find answers to in the archive that I’m hoping someone can clarify:
1. I loaded KTuner Stage 1 w/DP tune after install and the car came back with 2 codes pointing to boost controller. I don’t remember the codes, but I cleared them and switched the tune to the Multi Stage 1 w/DP and things worked as they should. Anybody have issues with the stage 1 with DP tune?
2. The PRL DP came with a plug for the downstream O2 sensor. Should I have used that or reinstalled the O2 sensor like I did? Not sure if that matters since it’s disabled by KTuner anyways...
3. In KTuner, I disabled “slow O2 response” for all my tunes, but after 60 miles of driving, I threw a P0420 code this morning. Was there something else I was supposed to disable as well to keep the check engine light off?
4. In addition to the emissions system fault, the car has a rev match fault now too. Is that normal when throwing a P0420 code?
Thank you for your time!
1. I loaded KTuner Stage 1 w/DP tune after install and the car came back with 2 codes pointing to boost controller. I don’t remember the codes, but I cleared them and switched the tune to the Multi Stage 1 w/DP and things worked as they should. Anybody have issues with the stage 1 with DP tune?
2. The PRL DP came with a plug for the downstream O2 sensor. Should I have used that or reinstalled the O2 sensor like I did? Not sure if that matters since it’s disabled by KTuner anyways...
3. In KTuner, I disabled “slow O2 response” for all my tunes, but after 60 miles of driving, I threw a P0420 code this morning. Was there something else I was supposed to disable as well to keep the check engine light off?
4. In addition to the emissions system fault, the car has a rev match fault now too. Is that normal when throwing a P0420 code?
Thank you for your time!
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