Hi All, I'm having boost related issues and need some info from you helpful lot. The symptoms are very little boost accompanied by an ECL which when scanned reveals this code: 17535 - Fuel Trim: Bank 1 (Mult): System too Rich P1127 - 35-10 - - - Intermittent Following some googling I believe this could either be a boost leak or a dodgy MAF. I've already changed the DV for an OEM replacement so I'm ruling that out. So, my questions are: 1. Does anyone have any diagrams of the boost pipe setup on a BAM S3 and does anybody know of common failure pipes/joins to check first? I've only scanned the pipes when changing the DV and haven't noticed anything. 2. Has anyone successfully cleaned their MAF and if so what cleaner did you use? I've read mixed reports on the net. 3. What's the going rate for an OEM MAF these days? 4. What are peoples suggested next steps? I'm considering trying to run the car with the MAF unplugged to see if there's any difference toegther with checking all the pipes that could be subject to boost leaks (hence question 1 above). Help appreciated. Cheers, Dave.