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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Tue, May-14-2019, 10:11:40 PM   #41
Kenny167
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Default Re: At my wits end, misfire issue, OBDII monitors incomplete...

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Originally Posted by terraphantm View Post
Care to explain what can be “coded” on the mss54 rather than tuned? I’m quite certain there’s no distinction of that sort on this dme.
I was thinking about how the other modules worked and wasn't completely focused on what I was saying, I meant that it's not a part of the maps/scales but rather an option being flipped on or off.
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Old Tue, May-14-2019, 10:33:49 PM   #42
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Default At my wits end, misfire issue, OBDII monitors incomplete...

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Originally Posted by Kenny167 View Post
I meant that it's not a part of the maps/scales but rather an option being flipped on or off.


^ this
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Old Tue, May-14-2019, 10:47:02 PM   #43
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Default Re: At my wits end, misfire issue, OBDII monitors incomplete...

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Originally Posted by Kenny167 View Post
Hey look I was on the right track

I don't think it's leaking capacitors, because why would it change when the engine warmed up? I guess the idle is controlled differently but I doubt that's the issue.

The reason I say that is because the oxygen monitor shows incomplete, which tells me that in one way or another the ECU is getting bad info, or it's getting info and interpreting it as bad. This is likely due to the coding of the ECU (not the tune, but coding), which would explain why it worked with the other ECU.

If I were you, I'd check the different parameters I mentioned previously (mainly the cat protection and SAP cat heating) and see what's different between your ECU and the one you dropped in. If they're different, fix it, and if not, then continue the search...
Im with you on this one, but i'll check just to humor them so they can get to fixing my tune ASAP.

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Originally Posted by CSLM3Wannabi View Post
You are more than likely correct, sir. Being that there are no issues once the warmup cycle has finished it is most likely a coding issue. However, the coding, I assume was done along with the tuning, leaving the tuner responsible for the repair. Last thing I want to do is mess with someone else’s work. Just happy I could be of assistance.
Indeed, they need to be the ones to fix this for sure, onus is on them if my capacitors are indeed not leaking. Thank you again for all of the help man, hopefully my car will be running misfire free soon enough!
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Old Wed, May-15-2019, 01:06:40 AM   #44
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Default Re: At my wits end, misfire issue, OBDII monitors incomplete...

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Originally Posted by alwaysbored786 View Post
Thank you again for all of the help man, hopefully my car will be running misfire free soon enough!


my pleasure
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Old Wed, May-22-2019, 12:11:01 PM   #45
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Default Re: At my wits end, misfire issue, OBDII monitors incomplete...

Any updates on this? I'm curious of the outcome
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Old Wed, May-22-2019, 12:59:57 PM   #46
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Default Re: At my wits end, misfire issue, OBDII monitors incomplete...

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Any updates on this? I'm curious of the outcome
The last week or so i've been trying to get a hold of Frank at TTFS, its pretty difficult to get him on the phone. Once I can get a hold of him, i'll give another update as to what he says.
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Current Stable:
2006 ZCP M3, Interlagos Blue/Black, 6MT
1998 M3 Coupe, Black/Black, 5MT, 28K miles
1996 M3 Coupe, Techno Violet/Hurricane, 5MT

Gone but not fogotten:
1997 M3 Coupe Techno Violet/Mulberry 5MT, 2004 Noble M12 GTO 3R 6MT, 1996 XJ Red/Tan AT, 1995 M3 Coupe Silver 5MT, 1988 325e Black/Black 5MT, 2002 330ci Blue/Grey 5MT, 2003 ZHP Sedan Black/Black 6MT, 2003 M3 Imola Red/Black 6MT
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Old Sat, May-25-2019, 03:52:43 PM   #47
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Default Re: At my wits end, misfire issue, OBDII monitors incomplete...

Got ahold of TTFS, will be going there Tuesday after work.

He said these ECU's are dropping like flies, to test it, he'll flash my car back to stock, and if the intermittent issue doesnt come back, its tune tune (and i assume he will fix it), if it does, then my ECU is goofed.

Guess we'll find out.
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Current Stable:
2006 ZCP M3, Interlagos Blue/Black, 6MT
1998 M3 Coupe, Black/Black, 5MT, 28K miles
1996 M3 Coupe, Techno Violet/Hurricane, 5MT

Gone but not fogotten:
1997 M3 Coupe Techno Violet/Mulberry 5MT, 2004 Noble M12 GTO 3R 6MT, 1996 XJ Red/Tan AT, 1995 M3 Coupe Silver 5MT, 1988 325e Black/Black 5MT, 2002 330ci Blue/Grey 5MT, 2003 ZHP Sedan Black/Black 6MT, 2003 M3 Imola Red/Black 6MT
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Old Sun, May-26-2019, 12:24:35 AM   #48
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Default Re: At my wits end, misfire issue, OBDII monitors incomplete...

Sub'd
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Old Thu, May-30-2019, 06:16:07 PM   #49
alwaysbored786
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Default Re: At my wits end, misfire issue, OBDII monitors incomplete...

Didnt make it this past Tuesday, had to go to to an unexpected meeting, will have to find a time to go to TTFS sometime soon, or have the local shop he works with get it flashed to stock remotely.
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Current Stable:
2006 ZCP M3, Interlagos Blue/Black, 6MT
1998 M3 Coupe, Black/Black, 5MT, 28K miles
1996 M3 Coupe, Techno Violet/Hurricane, 5MT

Gone but not fogotten:
1997 M3 Coupe Techno Violet/Mulberry 5MT, 2004 Noble M12 GTO 3R 6MT, 1996 XJ Red/Tan AT, 1995 M3 Coupe Silver 5MT, 1988 325e Black/Black 5MT, 2002 330ci Blue/Grey 5MT, 2003 ZHP Sedan Black/Black 6MT, 2003 M3 Imola Red/Black 6MT
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Old Thu, May-30-2019, 07:45:28 PM   #50
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Default Re: At my wits end, misfire issue, OBDII monitors incomplete...

i'm assuming after reading through all the pages that you dont have a laptop with flashing capabilities and a proper cable?

since your car is a 2006, the next thing I would be doing is making a full backup of your DME and Tune file and then after that flashing the OEM modified CSL software to your HP DME since your car is a 2006 and seeing if you have similar issues or if it gets better.

if you have all 4 o2 sensors plugged in and in the proper locations, you shouldn't have to have them suppressed or coded out anyways.

unless you are still running a MAF sensor and that's why you went with the TTFS tune?
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Discussing At my wits end, misfire issue, OBDII monitors incomplete... in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)