Hi guys, my V5 Type R has been having a few problems.
It used to run at 2bar (got the graph to prove this) but now it only peaks at 1.6bar and holds around 1.2. Coupled with this I have idle problems which is worse when hitting the clutch after boost. Sometimes it stalls, sometimes it recovers and the idle hunts when at tickover.
So after searching on here, NASIOC, P1WOC, 22B, etc etc I got code 23 and 24 from the ECU so I changed the MAF and cleaned out the ICV, reset the ECU and now have no codes showing but no change.
I have removed and blanked off the annoying VTA dump valve, checked ALL vac hoses and all appear to be fine. I even changed the coilpack - no change.
Has anybody had a problem like this that was solved by something else?

I eventually want to move to Syvecs, maybe starting afresh with a new ECU will weed out any problems, I dunno. Maybe a change to individual coilpacks could sort it.

Any help will be appreciated, my scalp hurts from all the scratching


Paul

 

Try cleaning the boost solenoid but it could be a number of things.

 

Yeah I did that the same time as the ICV