I have a 2009 factory JCW 63k with DOS CAI and DoS W2A IC running Alta Tuner stage 1 FMIC. I have only put 3 thousand miles since owning the car one year. I have had nothing but problems with the car. I had the chain assembly rebuilt due to recall and the pulley system completely replaced due to failure. I have kept all oil changes and normal maintenance done too. Recently I have been driving and the turbo boost goes in and out almost like there is no turbo and intake is silent compared to the normally working sound. I checked all hoses and clamps and everything is sealed and tightened with no visible holes or leaks. The car works again out of no where but is not consistent. My CEL came on today and read the following codes today.

P115D
P2B5B
P2D52
P2DCB
P2D9B
P2D5D

I am really trying to stay positive with this car but at this point it is extremely difficult. I am not trying to send it to the dealer again and have to once again pay thousands of dollars. Any help would be greatly appreciated. I am not a master mechanic by no means but am some what savvy with general repair and trouble shooting. Thanks in advance for any help.

 

Maybe some of these threads will help. There seems to be a common item in the use of Alta products and DOS. But then again your talking bout intake and boost.

I don't have any of these vendors items on my car and have no opinion either way as to if they are helping or hurting you.

Good Luck.

P115D - https://www.northamericanmotoring.co...lp-please.html

P2B5B - https://www.northamericanmotoring.co...s-p2b5b-c.html

P2D52 - https://www.northamericanmotoring.co...eration-3.html

P2DCB - https://www.northamericanmotoring.co...ild-boost.html

P2D9B - https://www.northamericanmotoring.co...and-p2d50.html

P2D5D - nothing found.

 

Did you find a solution?