my tach was acting up when i first got the car, I cleaned all the connections going to the coil when i replaced the coil and that fixed it.
I am currently using the cheaper version because I just never put in the 'thought-to-be-bad' pack back in [btw, it was an injector so both packs were perfectly fine]. With that in mind, I cannot say there was any quality increase because it was never my CP to begin with so it was still misfiring even with the $350 BERU. But, what they did both do is act exactly the same when I put them both in. I have not had any problems thus far with the cheaper one, and it feels about the exact same quality as the beru brand.
Changed the plugs, and while changing them noticed that there was a little charring in two of the coil paks seating surface where the spark plug tip sits...after changing the plugs the car still felt like ****. Ran to Advanced....and they showed 2 cylinders not firing good, needless to say they only stocked one coil pak. I replaced it and the car ran like a champ.
The old AWD hitachi coils are far more reliable in my experience. I would not change to the awp style from the bolt downs. I have had ~8 failed AWP coils over the years on my 2001 audi/2002 gti and I have 8 hitachis now in my 2 1.8t's for a few years now and no hitachi failures. This is with track days on the gti. They also bolt down so you won't have them popping up on you whack a mole style like the awp ones sometimes do
I had a intermittant misfire that wouldn't go away.. changed out coilpacks, plugs, wires, nothing made a bit of difference. Installed the MSD coilpacks, and the MSD wires and viola, misfire was gone. Regardless, the cost of a stock coilpack + wires far exceedes the cost of the MSD setup.
I found the MSD setup to be a very nice upgrade. Might have just been a mental thing, but I felt that it gave the motor a little more pep and it revved a bit faster.
I went with MSD. I can say that the car definitely runs a bit smoother, but I did it for a different reason. I figured in the long run it will be cheaper. If one of the coilpacks goes bad I 'll only be spending $42 instead of having to buy an entire coilpack. Even if all three went bad all at once it would still be less expensive than the cost of a new "oem" coilpack.
Car was misfiring, so I replaced the ignition coil unit (old one was showing cracks). I replaced it with a Beru (OEM) unit. Car went from a sputtering mess to running like a top.
Has anyone ever experienced an odd electrical type humming sound eminating from the front of the dash after putting in a new ignition coil??? I put in a Beru Coil and I could swear I now hear a faint hum that wasn't there prior to installing the new one. It kind of sounds like the radio with the sound way low when it picks up engine frequencies (but I know it's not that). It definitely sounds electrical and not mechanical and I've noticed the hum increases in frequency when I increase the rpm's. Do coils even make any noise??? Thanks.
Yep, guess it's common, but mine just caused a smoking fire under the hood! As mentioned, I just started the car in the a.m. and was backing out of the garage. It started sounding and acting funny as explained and the engine light was blinking.
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