![My car was running fine but it had a rough idle so I decided to change the oil separation system, (ccv and disa valve and hoses) on my bmw 325i 2003 and My car was running fine but it had a rough idle so I decided to change the oil separation system, (ccv and disa valve and hoses) on my bmw 325i 2003 and](https://i.redd.it/fkjcnyu1z0961.jpg)
My car was running fine but it had a rough idle so I decided to change the oil separation system, (ccv and disa valve and hoses) on my bmw 325i 2003 and
![i have a 2014 acura tl 3.7 v6 . it has a rough idle but it drives fine . we've changed the coil packs and plugs , and check other small things i have a 2014 acura tl 3.7 v6 . it has a rough idle but it drives fine . we've changed the coil packs and plugs , and check other small things](https://preview.redd.it/nm3fds74mds81.jpg?width=640&crop=smart&auto=webp&s=809a500747f99db78b1195362a5fa67b4eba8c9c)
i have a 2014 acura tl 3.7 v6 . it has a rough idle but it drives fine . we've changed the coil packs and plugs , and check other small things
![Porsche Cayenne S Rough Idle Stumble - Car Repair, & Performance | Fluid MotorUnion | 2108 W. Ferry Rd. Unit 102 Naperville, IL Porsche Cayenne S Rough Idle Stumble - Car Repair, & Performance | Fluid MotorUnion | 2108 W. Ferry Rd. Unit 102 Naperville, IL](https://fluidmotorunion.com/wp-content/uploads/2015/06/2006-Porsche-Cayenne-S-4.5-v8-Rough-run-idle-not-smooth-stumble-on-acceleration-ignition-coil-spark-plugs-no-faults-when-cold-or-hot-checking-for-intake-leaks-smoke-machine-engine-bay.jpg)