Bought an M3 with a tune

S2000_Europe · 05-25-2021, 03:37 PM

Hello,

I recently bought an M3 Comp 2017. Mechanically is good but the shop told me that the DME came with a tune. He reseted the DME using bmw software but he still having issues with misfire in cylinder 3,4,5

the car has 40k miles, coils are good, leak test good, new spark plugs ( had one with a step colder)

How can I delete the software and have the original back?

I do not want to drive the car and don't want to buy a new DME.

I am located in Miami

Thanks

theweebabySeamus · 05-25-2021, 04:21 PM

It sounds like the shop already reset it to BMW software so it's not tuned anymore. You have a cylinder 3 misfire that needs to be troubleshot.

SYT_Shadow · 05-25-2021, 04:22 PM

It's possible the misfire is due to the different plugs and having an oem tune now

S2000_Europe · 05-25-2021, 04:48 PM

sorry if I did not explain myself correctly. Misfire is in cylinders 3,4,6

the shop installed the original plugs and changed the coilers and reset all the software

Could be the injectors?

SYT_Shadow · 05-25-2021, 04:51 PM

I don't know. Plenty of asshats are running E85 and doing all kinds of things on leased cars, then return them and you're left trying to figure out what they did

S2000_Europe · 05-25-2021, 09:19 PM

Quote:

Originally Posted by SYT_Shadow

I don't know. Plenty of asshats are running E85 and doing all kinds of things on leased cars, then return them and you're left trying to figure out what they did

Know I understand why bmw lock the DMEs

If I get more info I will post it here. Tomorrow I am going to another shop who is specialized in M3, If this do not work I will try Active Werke and the last resource the Stealership

mike@x-ph.com · 05-26-2021, 10:00 AM

Quote:

Originally Posted by S2000_Europe

Know I understand why bmw lock the DMEs

If I get more info I will post it here. Tomorrow I am going to another shop who is specialized in M3, If this do not work I will try Active Werke and the last resource the Stealership

MisterF80M3 · 05-26-2021, 04:59 PM

What tune was on it originally?

S2000_Europe · 05-26-2021, 06:30 PM

Quote:

Originally Posted by MisterF80M3

What tune was on it originally?

bootmod3

TopJimmy · 05-26-2021, 06:33 PM

Quote:

Originally Posted by S2000_Europe

Quote:

Originally Posted by MisterF80M3

What tune was on it originally?

bootmod3

Just email PTF and ask them for help flashing your car back to stock. They can get their tunes uninstalled.

S2000_Europe · 05-26-2021, 06:34 PM

update

we found that the intercooler is leaking.

next steps, change intercooler, replace coil cables and check if spark plugs where installed correctly

I still do mot understand why the other shop updated the DME software to the 2020 version

S2000_Europe · 05-26-2021, 06:43 PM

Quote:

Originally Posted by TopJimmy

Quote:

Originally Posted by S2000_Europe

Quote:

Originally Posted by MisterF80M3

What tune was on it originally?

bootmod3

Just email PTF and ask them for help flashing your car back to stock. They can get their tunes uninstalled.

we the shop update the DME the tune was deleted. But the first shop insisted that the tune was still the.

the second shop notice that the intercooler was leaking and is performing to change the coil cables, the first shop said it is not necessary.

History shot my car went to the first shop running well, just a revision and to check all was clear, and leaved with misfire in cylinder 3,4,5

MisterF80M3 · 05-26-2021, 08:54 PM

Are you 100% sure you are on stock tune?

S2000_Europe · 05-27-2021, 07:35 AM

Quote:

Originally Posted by MisterF80M3

Are you 100% sure you are on stock tune?

I am sure, I spoke with the shop who installed and uninstalled the tune. I assume that after reseting the DME with the 2020 ISTA software f the were any tune, it would be deleted

S2000_Europe · 05-27-2021, 12:43 PM

update 2

The second shop was right, installed M performance coil cables and now the M3 runs perfect. The first shop still insist that the DME is damage.

Intercooler was leaking

The car runs a bit lean, the mechanic found that the car had an aftermarket intake and when retrofit it to stock the MAF sensor was not installed correctly so the air pass through it

Word of advise, never update the ISTA to the last version, because sometime has bugs. That is the reason why shop two could not communicate with the DME with its 2019 version, is like Windows, if it works do not fix it!

TopJimmy · 05-27-2021, 06:42 PM

Quote:

Originally Posted by S2000_Europe

Word of advise, never update the ISTA to the last version, because sometime has bugs. That is the reason why shop two could not communicate with the DME with its 2019 version, is like Windows, if it works do not fix it!

You got it. The latest software update for the DME will also lock you out of Bootmod3. Rat badtids!

S2000_Europe · 06-01-2021, 12:31 PM

more news,

no more misfires but one oxygen sensor, before cat, is reading lean mixture. While his twin is not.

So seems that needs to the replaced.

The mechanic told me that some "kids" likes high popping noises with their tune. That is really bad for the sensor.

Last time I buy an used BMW

CubicMeters · 06-01-2021, 01:29 PM

Quote:

Originally Posted by S2000_Europe

Last time I buy an tuned BMW

Fixed

S2000_Europe · 06-01-2021, 01:43 PM

Quote:

Originally Posted by CubicMeters

Quote:

Originally Posted by S2000_Europe

Last time I buy an tuned BMW

Fixed

the car was stock and serviced at bmw dealers.

This also proof that carfax is worthless

CubicMeters · 06-01-2021, 05:05 PM

Sorry guess I misunderstood the original post.

Carfax does what it does. Certainly a "clean" carfax isn't an unequivocal green light on any vehicle. As they say: absence of evidence is not evidence of absence.

S2000_Europe · 06-02-2021, 06:09 PM

The car now runs like a champ!

the problem was the o2 sensor.

The shop did a leak test and a compression test and all was perfect.

Thanks all for your help

TopJimmy · 06-02-2021, 06:34 PM

Glad it's fixed.

Strange how the problem occurred across both banks (cyls 3,4,6) with just one sensor failure.

05-25-2021, 03:37 PM	#1
S2000_Europe Private First Class 56 Rep 174 Posts Drives: M3 E92 "Stripper" Alpine White Join Date: Feb 2021 Location: Florida iTrader: (2)	Hello, I recently bought an M3 Comp 2017. Mechanically is good but the shop told me that the DME came with a tune. He reseted the DME using bmw software but he still having issues with misfire in cylinder 3,4,5 the car has 40k miles, coils are good, leak test good, new spark plugs ( had one with a step colder) How can I delete the software and have the original back? I do not want to drive the car and don't want to buy a new DME. I am located in Miami Thanks __________________ MY02 S2000 > MY11 STI > MY01 E46 M3 > MY05 S2000 > MY06 911 C2S > MY88 944 TURBO S > MY17 STI > MY17 SS 1LE > C7 GS w/ ZO7 package > MY18 ZL1 >MY20 F87> MY17 F80 ZCP> MY18 Subaru STi Type RA > MY13 E92 "Stripper"
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05-25-2021, 04:21 PM	#2
theweebabySeamus Captain 373 Rep 901 Posts Drives: M3 Join Date: Jul 2014 Location: Bay Area iTrader: (1)	It sounds like the shop already reset it to BMW software so it's not tuned anymore. You have a cylinder 3 misfire that needs to be troubleshot.
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05-25-2021, 04:22 PM	#3
SYT_Shadow ///M Powered for Life 11469 Rep 10,328 Posts Drives: E90M/E92M/M4GTS/M4GT4/X5M Join Date: Sep 2010 Location: Greenwich, CT iTrader: (2)	It's possible the misfire is due to the different plugs and having an oem tune now __________________ DIY: S65 Rod Bearings E9X PFC Z54 BBK on F8X BK harness bar + seats: fit 6 tires in an M3 do88 Cooling Goodies GTS Twins: GTMore project
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05-25-2021, 04:48 PM	#4
S2000_Europe Private First Class 56 Rep 174 Posts Drives: M3 E92 "Stripper" Alpine White Join Date: Feb 2021 Location: Florida iTrader: (2)	sorry if I did not explain myself correctly. Misfire is in cylinders 3,4,6 the shop installed the original plugs and changed the coilers and reset all the software Could be the injectors? __________________ MY02 S2000 > MY11 STI > MY01 E46 M3 > MY05 S2000 > MY06 911 C2S > MY88 944 TURBO S > MY17 STI > MY17 SS 1LE > C7 GS w/ ZO7 package > MY18 ZL1 >MY20 F87> MY17 F80 ZCP> MY18 Subaru STi Type RA > MY13 E92 "Stripper"
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05-25-2021, 04:51 PM	#5
SYT_Shadow ///M Powered for Life 11469 Rep 10,328 Posts Drives: E90M/E92M/M4GTS/M4GT4/X5M Join Date: Sep 2010 Location: Greenwich, CT iTrader: (2)	I don't know. Plenty of asshats are running E85 and doing all kinds of things on leased cars, then return them and you're left trying to figure out what they did __________________ DIY: S65 Rod Bearings E9X PFC Z54 BBK on F8X BK harness bar + seats: fit 6 tires in an M3 do88 Cooling Goodies GTS Twins: GTMore project
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05-26-2021, 04:59 PM	#8
MisterF80M3 Major 1046 Rep 1,165 Posts Drives: 2018 M3 Join Date: Jul 2018 Location: CA iTrader: (4)	What tune was on it originally? __________________ 2018 BMW F80 ///M3 570WHP/578TQ
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05-26-2021, 06:34 PM	#11
S2000_Europe Private First Class 56 Rep 174 Posts Drives: M3 E92 "Stripper" Alpine White Join Date: Feb 2021 Location: Florida iTrader: (2)	update we found that the intercooler is leaking. next steps, change intercooler, replace coil cables and check if spark plugs where installed correctly I still do mot understand why the other shop updated the DME software to the 2020 version __________________ MY02 S2000 > MY11 STI > MY01 E46 M3 > MY05 S2000 > MY06 911 C2S > MY88 944 TURBO S > MY17 STI > MY17 SS 1LE > C7 GS w/ ZO7 package > MY18 ZL1 >MY20 F87> MY17 F80 ZCP> MY18 Subaru STi Type RA > MY13 E92 "Stripper"
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05-26-2021, 08:54 PM	#13
MisterF80M3 Major 1046 Rep 1,165 Posts Drives: 2018 M3 Join Date: Jul 2018 Location: CA iTrader: (4)	Are you 100% sure you are on stock tune? __________________ 2018 BMW F80 ///M3 570WHP/578TQ
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05-27-2021, 12:43 PM	#15
S2000_Europe Private First Class 56 Rep 174 Posts Drives: M3 E92 "Stripper" Alpine White Join Date: Feb 2021 Location: Florida iTrader: (2)	update 2 The second shop was right, installed M performance coil cables and now the M3 runs perfect. The first shop still insist that the DME is damage. Intercooler was leaking The car runs a bit lean, the mechanic found that the car had an aftermarket intake and when retrofit it to stock the MAF sensor was not installed correctly so the air pass through it Word of advise, never update the ISTA to the last version, because sometime has bugs. That is the reason why shop two could not communicate with the DME with its 2019 version, is like Windows, if it works do not fix it! __________________ MY02 S2000 > MY11 STI > MY01 E46 M3 > MY05 S2000 > MY06 911 C2S > MY88 944 TURBO S > MY17 STI > MY17 SS 1LE > C7 GS w/ ZO7 package > MY18 ZL1 >MY20 F87> MY17 F80 ZCP> MY18 Subaru STi Type RA > MY13 E92 "Stripper"
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06-01-2021, 12:31 PM	#17
S2000_Europe Private First Class 56 Rep 174 Posts Drives: M3 E92 "Stripper" Alpine White Join Date: Feb 2021 Location: Florida iTrader: (2)	more news, no more misfires but one oxygen sensor, before cat, is reading lean mixture. While his twin is not. So seems that needs to the replaced. The mechanic told me that some "kids" likes high popping noises with their tune. That is really bad for the sensor. Last time I buy an used BMW __________________ MY02 S2000 > MY11 STI > MY01 E46 M3 > MY05 S2000 > MY06 911 C2S > MY88 944 TURBO S > MY17 STI > MY17 SS 1LE > C7 GS w/ ZO7 package > MY18 ZL1 >MY20 F87> MY17 F80 ZCP> MY18 Subaru STi Type RA > MY13 E92 "Stripper"
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06-01-2021, 05:05 PM	#20
CubicMeters Enlisted Member 17 Rep 30 Posts Drives: BMW M3 Join Date: Apr 2021 Location: Maryland iTrader: (1)	Sorry guess I misunderstood the original post. Carfax does what it does. Certainly a "clean" carfax isn't an unequivocal green light on any vehicle. As they say: absence of evidence is not evidence of absence.
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06-02-2021, 06:09 PM	#21
S2000_Europe Private First Class 56 Rep 174 Posts Drives: M3 E92 "Stripper" Alpine White Join Date: Feb 2021 Location: Florida iTrader: (2)	The car now runs like a champ! the problem was the o2 sensor. The shop did a leak test and a compression test and all was perfect. Thanks all for your help __________________ MY02 S2000 > MY11 STI > MY01 E46 M3 > MY05 S2000 > MY06 911 C2S > MY88 944 TURBO S > MY17 STI > MY17 SS 1LE > C7 GS w/ ZO7 package > MY18 ZL1 >MY20 F87> MY17 F80 ZCP> MY18 Subaru STi Type RA > MY13 E92 "Stripper"
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06-02-2021, 06:34 PM	#22
TopJimmy Major General 5450 Rep 5,143 Posts Drives: 2023 M3 Comp xDrive Join Date: Jul 2019 Location: Chester County, PA iTrader: (5)	Glad it's fixed. Strange how the problem occurred across both banks (cyls 3,4,6) with just one sensor failure. __________________ '18 F80 Base 6MT \| '19 F82 Exec DCT \| '18 F82 Comp Exec DCT \| '23 G80cx
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