Just changed the ignition coils. Fixed it!! I recommend getting BOSCH or an OEM equivalent brand.
Denso is what I run and never a problem.
my issue was the same which ended up being coils and hpfp
since you changed the coils ( Bosch is best ) I would look at the fuel next.
When you buy on Amazon, make sure you buy directly from the manufacturer. You are right. A bosch ignition coil costs $34 at the official bosch store in amazon, while it costs $60 at advanced auto parts.
Truly you can’t get anything but the Denso coils. There’s no money buying and installing twice.
Have to use Denso coil packs. All the cheap ones are crap.
I replaced all the spark plugs as well as the four ignition coils (new Bosch coils). After repair, the car runs perfectly and I no longer have any hiccups while driving.
Found another store and borrowed vehicle to get a Bosch. Swapped out the carquest one and SEEMED FIXED AGAIN…same thing, ran good for about 5 miles and went back to same symptoms.
Probably the coils. The Bosch coils I’ve used in the past on my 330Ci (same coils) lasted maybe 20K. Delphi are much better.
Stick with the stock Delphi’s. I went with Bosch recently and half of them died within a day (N55). FCP swapped them out, no questions asked, but still a PITA to do the work multiple times.
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