Exhaust Valve Actuator Wiring

see.m3.go · 07-18-2023, 04:39 PM

So I have figured out that the wiring for one of my exhaust valve actuators (driver side) is bad. Swapping in a known good actuator makes no difference.

Where do these commonly go bad? I am assuming I will have to take off my bumper to diagnose this?

see.m3.go · 07-19-2023, 04:00 AM

Nevermind. I realized that for some reason my car had fuse 146 pulled and 147 was still in place. This made driver's side not function (it was 'stuck' closed) while passenger side still worked. Put in a new fuse and both valves work. Not sure why someone would remove one fuse for exhaust valves...

07-18-2023, 04:39 PM	#1
see.m3.go New Member 2 Rep 11 Posts Drives: E46 M3, F85 X5M Join Date: Aug 2012 Location: Del Mar iTrader: (0)	Exhaust Valve Actuator Wiring So I have figured out that the wiring for one of my exhaust valve actuators (driver side) is bad. Swapping in a known good actuator makes no difference. Where do these commonly go bad? I am assuming I will have to take off my bumper to diagnose this? __________________ 2015 Yas Marina Blue F80 M3 - Stripper 6MT 2016 Black Sapphire Metallic F85 X5M 2003 TiAg E46 M3 6MT - Street/Track Build
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07-19-2023, 04:00 AM	#2
see.m3.go New Member 2 Rep 11 Posts Drives: E46 M3, F85 X5M Join Date: Aug 2012 Location: Del Mar iTrader: (0)	Nevermind. I realized that for some reason my car had fuse 146 pulled and 147 was still in place. This made driver's side not function (it was 'stuck' closed) while passenger side still worked. Put in a new fuse and both valves work. Not sure why someone would remove one fuse for exhaust valves... __________________ 2015 Yas Marina Blue F80 M3 - Stripper 6MT 2016 Black Sapphire Metallic F85 X5M 2003 TiAg E46 M3 6MT - Street/Track Build
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