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Old 01-04-2020, 10:26 PM   #1
BimmerAgent
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Default Coil on PLug Conversion kit

Hi Fellas- I'm looking for the wiring harness for the coil on plug conversion for my M44 with DASC. I tried HQAutosport and they were unable to supply the harness. Does anyone have a reliable trusted source for the harness? Thanks. Bruce
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Old 01-12-2020, 05:41 PM   #2
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OK, so I went ahead and ordered the kit from GKD Tuning. We'll see how it works out.
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Old 01-18-2020, 01:21 AM   #3
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Welcome to the site. I donít know how many have done this conversion to comment. I guess youíre the guy to tell us all about it.

So, how did it go? Was there a noticeable improvement?
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Old 01-18-2020, 05:11 AM   #4
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HI Jim- I don't know yet. Since the kit comes from Britain, it takes a while to get here. They make the harness to order, which takes a few days, and then shipping. I'll share my thoughts on it when it shows up and I get it installed. Thanks for your interest. Bruce
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Old 01-18-2020, 11:43 AM   #5
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Ok! Keep us posted!
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Old 01-20-2020, 04:55 PM   #6
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Quote:
Originally Posted by J!m View Post
Welcome to the site. I donít know how many have done this conversion to comment. I guess youíre the guy to tell us all about it.

So, how did it go? Was there a noticeable improvement?
It does make a difference, I did this a few years go and I can definitely notice the difference. I also have a Dinan tune though, but the car overall drives and feels more responsive with the coil on plug conversion.
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Old 01-20-2020, 05:30 PM   #7
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That's good to hear. I'm hoping to smooth out the idle a little and maybe cure an intermittent CEL i get that I've had trouble tracking down.
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Old 01-20-2020, 05:58 PM   #8
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If you are using the generic error codes provided with most code readers (Peake, etc.) you will get some wrong ones.

You want to use the factory P-codes, which vary slightly form year to year.
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Old 01-21-2020, 03:48 PM   #9
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You might want to search at m42club.com for COP conversion information too. They have identified connectors to make your own harness. Parts cost about $75 + coils. If you do this make sure you test that the coils fit through your valve cover openings (24mm dia.). There is an interesting solution using the Delphi e90 coils that I test fit. However after discussing this with my friend and master bmw mechanic I decided that putting coils in the middle of a hot engine block would not last as long as the almost bullet proof original coil pack. But my motivations are probably different than yours.
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Old 02-05-2020, 12:37 AM   #10
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OK, I did the conversion with the GKD Tuning kit and new coil on plug units from Amazon. Installation was straight forward and easy. First impressions are that the engine starts easier, idles smoother, and just seems to run "happier." It's not any faster or anything, but it just seems to pull smoother through the gears. I cleared the CEL I would get intermittently, and so far, it hasn't returned, but time will tell on that. Overall, I am satisfied at this point.
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Old 02-05-2020, 01:26 AM   #11
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Nice! Hopefully that light stays out for you.
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