Found the issue today. There was a tear in the vacuum line running into the bypass control valve. I think it got pinched or something during the DP install... Regardless, the issue has been resolved now. ?
P2261 ( Turbo bypass control valve stuck closed)
2019 Type R won't boost more than 10 psi, threw a check engine light and it was a P2261. Currently running a Hondata tune for Catless PRL DP w/Mishimoto Intake. I got this code two days after running the downpipe, not sure if related or not...
Not just saying this to push my sale, but this is the best bang for your buck. Night and day difference from the factory tune. It's unbelievable how much of a difference this really makes! The TSP Tunes have both stock MAF and Race MAF tunes included.
I'm selling a KTuner V2 in excellent condition. The KTuner will come with both TSP Stage 1 and Stage 2 tunes for the Si. I have tunes for stock maf and race maf. I will also include my window mount for the KTuner along with the purchase. I'm selling this because I now own a Type R and I decided...
So I did the muffler delete and it's too loud for me, any suggestions on what I should have welded back in it's place? I currently have a catless PRL Downpipe and Front Pipe so keep that in mind...
What is everyone installing, 9" or 10.2"? When I search the site for the 2019 Civic (I own an Si Sedan if it matters) It comes back with 1 option in 10.2". I keep seeing people talk about the 9" tho... @amxandy
TSP stage 1 tune is night and day difference from the included ktuner tunes... I started to get clutch slip with it tho. So what did I do? Added a PRL Front Pipe, downpipe, and flex fuel kit . My car is now at IMW getting an fx400 w/flywheel installed. TSP Stage 1 is alot of fun tho.
My friend let me drive his car with the 88A Hasport mount and I have a 27Won installed on my car. Honestly, there is less NVH with the 27Won. Strange but true..... I know that's not really answering your questions but just wanted to let you know what my observation was.