Car has 90,000 miles. I run with 89 octane or better almost all the
time. This was definitely true for this last incident today.
I have had the car about 13 months. The first misfire codes (Cyl #2 and
Cyl #5) occurred at fairly high revs in 2nd gear in last October. Since
them I have have
same error codes on same cylinders about 3 times. I stored the car from
Jan 1 to March 15. Today for the first time I found a misfire cyl#1
code. The car goes into Limp Home Mode and then seems to reset itself,
if I turn the ignition off for a couple minutes. Seems to me the
are the coil, plug and the connector between the two. But now that it
has affected three different cylinders, I am thinking maybe it has to
be something upstream of the coils? I don't like that thought.
Any thoughts? Many Thanks, Mark
I thank you so much for taking the time to reply. Being a novice,
I can not figure out what the 'IME' is after search both Bentley Volumes
and using Google searches. I thought it might be Ignition Monitoring
somethingorother, but that theory has not produced a module with that
acronym. Could it be the lambda sensor?
Thanks again. I will have new plugs tomorrow. I have one new coil and
one new coil-to-plug connector to use in tests. Obviously, I will
carefully examine differences in the six coil-plug assemblies.
There have been two service bulletins issued on the coils. The first was to
replace any failed coiled, the second was to swap out the whole lot of 'em.
Have you had the coils replaced? I think with the recall it would be a
freebie, even though you're over warranty.
Given that, you're about due for new plugs. 100K is just about the absolute
limit on the plugs and you're 90% of the way there.
Recommend you contact local dealer and determine if you're entitled to coil
replacement. If that doesn't solve the problem, then plugs are plan B.
R / John
Thanks, so very much for your thoughts. I contacted a BMW dealer here
in Michigan. He informed me that there are no recalls for coils or on
matters that could relate to misfires. I believe you and not him, so
I plan to try a different dealer.
I have a '01 330xi. Same exact engine you have. There has *NOT*
been a recall on my car/engine. If you search the NHTSA database,
you will also note that there have not been ignition coil recalls, for your
car or mine.
I don't know where Mark is getting his info from, but it's incorrect in
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