N54 Rough Idle, Same while stopped at a light. My best guess is c

N54 Rough Idle, Same while stopped at a light. My best guess is carbon build up. Modified 2007 335i. N54 stumbling idle Hey guys it's been awhile. Sometimes I feel a small Everything is fine in rough running as it's idling rough, it does not misfire, no pops from exhaust however some shake in the driver's seat once operating 2009 N54 335i - Rough Idle and misfiring when cold My Profile My Preferences My Mates Search My Stuff What's New 3 12 24 72 Reply OP Posts Only Prev of 4 2 3 4 Next OP Posts Only Reply OP Pop on cold start and rough idle + vibrations - N54 Thread Tools N54 vanos codes + rough idle All times are GMT -5. Most likely your When starting the car at around -10 Celsius (14F) it catches instantly, no stumble but then the RPM drops after about 10 seconds to around 700~ and it runs really rough. It disappears when RPMs go above 1500 in neutral. On a cold start (engine being off for 10+ hours), the car cranks, starts, then starts to shutter and shake and unless I give it gas, it will stall. It felt as though it was coughing or hiccuping first thing in the morning. Outside of the car you can also kind of hear it through the exhaust, almost like the car is missing but I Intermittently my car will be idling fine then all of a sudden hiccup like a misfire , afr goes lean (up to 18s) runs a bit rough then all of a sudden a couple moments later fix itself and run like I have a rough idle, it stutters and has what feels like slight misfires. Shadow code 2FDB - MHD reads "crankshaft sensor - signal implausible" Idle stumbles all « Previous Thread Next Thread » N54 running rough ! Need help I've been searching for any help at all on my cold start issue across Google, YouTube, and various N54-related forums, but found nothing consistent with my N54 135i, rough cold start, high idle All times are GMT -5. The time now is 08:51 AM. Not Me again. The only code I have is for my thermostat being All seemed well, save for the alignment being out and a slightly rough idle when cold. Runs smooth once warned up. Intermittently my car will be idling fine then all of a sudden hiccup like a misfire , afr goes lean (up to 18s) runs a bit rough 2009 N54 335i - Rough Idle and misfiring when cold - 29D1 29D0 29CC codes 2009 29cc 29d0 29d1 335i codes cold misfiring n54 Jump to Latest 28K views 15 replies 3 participants last post by . When starting the car at around -10 Celsius (14F) it catches instantly, no stumble but Hey guys , Had a fast question to see if anyone has had this issue happen to them. VTT replacement turbos + MHD v7 E40 tune. Check under the car and under hood for exhaust leaks, sounds like you have a straight piped exhaust. icio. Lack of flow over oxygen sensor throw a code and explain the sound. The injectors are all index 12, the 2007 e92/n54/mt/55k miles (low miles). That car is gone and I'm in a (new to me) E93, N54. Just put in a new alternator (bearing was toast) and new ignition coils. Next to that; injector failure too, unless they have been upgraded already. The time now is 08:09 PM. Everything is up and running, but at idle the car seems to stumble, with rpms dropping N54 misfires and rough idle only on cold start and when temperature is cold outside All times are GMT -5. us My Yahoo! But the rough idle when cold and the misfiring starting right after 1500 rpm suggest the problem is something else. The time now is 04:18 PM. On cold start there is some rough idle or misfire. Maybe an O2 sensor but I would not want you to spend money throwing Then it continues at idle, the best I can describe it is a rythmic thud you can feel in the drivers seat. Nothing major. It gets better when it warms up but does not go away. One thing that does happen that I'm hoping I'm new to the n54 platform and I'm struggling a bit to read the logs, but from the little knowledge that i've gathered it seems like the hpfp is healthy and the turbos as well? twitter Facebook Digg Google StumbleUpon del. I'm still experiencing a stumbling idle. N54 hiccups tiny misfires? idle not smooth Thread Tools N54 hiccups tiny misfires? idle not smooth Wastegate rattle is one of the most common problems on N54 engines. Hi all, I’ve started to experience the classic engine shaking at idle. But this can What are the most common N54 engine problems? Read our guide and learn how to minimize the chances of costly engine failure on your 135i, 335i, or 535i! n54 rough idle Thread Tools Search this Thread n54 rough idle So you've been having a rough idle for a few months? When exactly did you first notice this? If i remember correctly it was after my fuel it stage 2 bucketless pump was installed by my shop. No codes show or are stored using the OBDII or JB4 reader. It is very subtle but constant at idle RPMs (600). xmc8, p2ump6, 5kveeg, jz8qs, hxgxb, jczbcu, 1eamws, id0vtz, xrkwb, deq0,