Scavenger Posted May 9, 2021 Report Posted May 9, 2021 I've got this issue that is driving me a bit crazy. My R53 exhibits a power loss after driving for a while. I've tried to isolate circumstances, such as AC on or off, temperature, etc. The thing that makes it so difficult to troubleshoot is that I'm not getting any codes. I've considered several things, from slipping clutch to failing throttle body or throttle position sensor. Here's where my thinking is now, but I need some help remembering. Recently, I remembered that I had my crank pulley/damper replaced many years ago, and was trying to remember what the symptoms were that led to it, it does seem like I had codes/lights at the time. The pulley was replaced with OEM. So, I'm wondering whether it could be failing again but not yet at the point of throwing codes. If it is indeed the culprit, I'll be going aftermarket this time! So, can anyone help me remember what the symptoms that were felt leading up to this pulley failing? 2006 MCS, SB/S , "B.A." Performance: DINAN "Stage 5" tune, throttle body, boost kit (fuel pump, pulley), & CAI; JCW exhaust sans resonator, brakes, & GP IC; DDM IC diverter; CSF Racing Aluminum Radiator Suspension: DINAN front strut brace; Alta 22mm rear bar; KW V1 coil-overs; H-Sport adjustable rear control arms; CravenSpeed strut underators Interior: CravenSpeed gauge mounts with Cooper S boost and voltage, & shift well cover Wheels: Enkei PF01 17" Audio: Kenwood Excelon KDC-X994 HU; MTX Terminator speakers F&B Alan @ opensource.com
