In the past month, highway potholes and bridge joints have been doing a number on my R53. They cause my engine to stutter upon impact and briefly trigger the CEL/ABS/DSC trifecta. Last weekend, a hard hit triggered those and a P0341 (Camshaft Position Sensor Circuit Range/Performance). That code cleared on its own, but tonight I had the worst experience yet: ABS/DSC/TPMS/EML/P2096 (Post-Cat Fuel Trim Too Lean)/P0335 (Crankshaft Position Sensor Circuit Malfunction). I actually stalled out while coasting. I luckily got it restarted rather fast, but it kept skipping beats until I could safely get off the highway.

Has anyone else dealt with this before? Any recommendations or thoughts on what the underlying problem is? Thanks in advance!

 

My first guess is a loose battery connection… Failing that, I would check those sensors for loose connections. Hitting a pot hole sounds like it’s jarring something loose.

 

Trifecta is often due entirely or in part to wheel speed sensor issues. I've had issues with their delicate sensor wire connectors which sit right behind the wheel well liners. On the left front it sits next to the brake wear sensor in a clip, right side has a clip for the wheel speed sensor only. Tiny wires, and the connectors look potentially vulnerable to the elements / water intrusion. The clips they sit in are kind of cheap and break easy too, leaving the connectors to droop, further increasing the chances of having an issue; I had to zip tie mine to the upper subframe post. Would carefully examine wires from the sensors back to those connectors and examine all for breaks and/or corrosion inside the connector terminals. Also seems like if you hit a pothole hard enough it may have compromised the wheel speed sensor(s) themselves from the shock, but not sure.