R56 jcw boost cutting in 4th, 5th and 6th gears
#1
R56 jcw boost cutting in 4th, 5th and 6th gears
Hi
Recently had to replace my turbo as the other one cracked the housing. With the new turbo In 4th 5th and 6th gear at about 6k revs my car constantly boost cuts. The psi it cuts at is usually different but its always at about 6k revs. I've had it cut at 18psi, 22psi and so on. After its boost cut for a period of time it goes into limp mode and only boost to about 5psi but does eventually start working again. Everytime after it does it, it brings up 2 engine codes P115A and P2B59. Any idea on what could be causing this? cheers
The photos are from the torque app showing when it boost cuts.
Recently had to replace my turbo as the other one cracked the housing. With the new turbo In 4th 5th and 6th gear at about 6k revs my car constantly boost cuts. The psi it cuts at is usually different but its always at about 6k revs. I've had it cut at 18psi, 22psi and so on. After its boost cut for a period of time it goes into limp mode and only boost to about 5psi but does eventually start working again. Everytime after it does it, it brings up 2 engine codes P115A and P2B59. Any idea on what could be causing this? cheers
The photos are from the torque app showing when it boost cuts.
#2
Have you checked the diverter valve and hoses connected to the turbo?
https://www.m5board.com/vbulletin/e6...ode-p2b59.html
https://new.minimania.com/Mini_Coope...wertrain_Codes
Looks like both codes point to the MAF.
https://www.m5board.com/vbulletin/e6...ode-p2b59.html
https://new.minimania.com/Mini_Coope...wertrain_Codes
Looks like both codes point to the MAF.
Last edited by knt; 05-14-2019 at 05:26 AM.
#3
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