WebOct 25, 2007 · Automotive Forums .com Car Chat > BMW > 3 Series > Uneven Idle From Cold . Uneven Idle From Cold. JOHN LAWLOR. 10-22-2007, 10:22 AM. ... I have the same problem (rough idle when cold) and was told by a friend this was the problem. Apparently, its a common problem. I have not cleaned mine yet, but will getting to it in the next … WebSep 1, 2016 · On a cold start, my 330i idled and generally ran poorly. The idle was a bit loopy and sometimes stumbled, occasional stall. A few times I would get engine codes P1554 and P0012. Even when warm the idle was a little unstable and some hesitation …
My Car Has a Rough Idle When Cold: 6 Possible Causes
WebIn bmw F10 ENGINE N55 has the most common problum is the blockage of valve cover or pcv valve which is causes engine rough idle.You Can speratly change the... WebFeb 13, 2024 · It primarily happens at idle. The engine RPMS briefly drop, seems to stumble/hiccup and vibrate about .5 seconds but recovers quickly. I can make it do the same thing going from higher RPM to low RPM suddenly when cold seems to trigger it as well (this to me suggests VANOS). It seems to accelerate just fine. mckinney red white and boom 2022
2016 BMW X1 it runs rough and stalls when cold starting ... - JustAnswer
WebOct 30, 2024 · October 30, 2024 by Carolina. One of the most common causes of rough idle on a cold engine is a faulty ECT sensor. This sensor signals the car’s computer … WebOct 30, 2024 · The most common reasons a BMW X3 has rough idle are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. ... Beyond the MAF sensor, in most cases, an engine that stumbles when it’s cold is caused by one of three different components: clogged fuel injectors, a dirty throttle body, or an EGR valve that is … WebApr 9, 2024 · Bmw E90 E60 N52 N54 P0012 P0015 Fix Rough Idle And Surging Power Must Hi. bmw e90 330i model 2010 , european version. car on cold start has rough idle for some seconds before rpm goes back to stable mode, also car has hesitation on low rpm , or on acceleration. i cleaned the throttle body, changed plugs, tested coils, no solution so … lickimat for cats