I have a 2008 N54 335i with about 75k miles. It recently developed a misfire/hesitation between 2500 and 4500rpm. It is an auto but the misfire is most prominent when I hold full throttle in a high gear. Above 4500rpm the engine runs fine all the time.
I had similar misfire issues about 5k miles ago and replaced the coils and plugs which fixed the issues. The car has a JB4 and the issue is there with the JB4 off but is less severe.
I don't get any fault codes.
Anyone have any ideas? Given the problem happens in the mid range, it seems like another electrical problem but given the coils and plus are fairly new, it seems unlikely?
The car idles like a clock and outside of the 2500-4500 rpm range, runs absolutely fine.
I had similar misfire issues about 5k miles ago and replaced the coils and plugs which fixed the issues. The car has a JB4 and the issue is there with the JB4 off but is less severe.
I don't get any fault codes.
Anyone have any ideas? Given the problem happens in the mid range, it seems like another electrical problem but given the coils and plus are fairly new, it seems unlikely?
The car idles like a clock and outside of the 2500-4500 rpm range, runs absolutely fine.
Aucun commentaire:
Enregistrer un commentaire