DIY: Resistor Mod To Cure Summertime SMG Blues

EmThree4Me · Fri, Jul-08-2011, 03:29:37 PM

Quote:

Originally Posted by MPOWERD

I think I will wait a few months to see how this mod really plays out over time.'

I still think the SMG Relay issue is engine overheat related and I will need a bit of convincing that this will solve the issue of failing relays, dropping gears, and the SMG COG light coming on...

I'll report back from time to time especially when summer months come and the constant stop and go traffic during my commute to work...

cntrvrsy · Fri, Jul-08-2011, 03:30:06 PM

Quote:

Originally Posted by 0-60Motorsports

Ah Thanks for the pics Bro

Now i get it. I wonder why we dont get these issues in our euro spec cars even though we see temps up to 125f here with humidity or dry. Maybe its cos our cats are in sec 1?

I think that is a huge factor! US cars have two cats packed tightly together kicking out a lot of heat and I do not doubt it plays a role in this issue. I'm curious to know the comparison between SMG guys that have aftermarket headers and those that don't and see which group has this issue more often.

Quote:

Originally Posted by Rated M3

How come you didn't solder the resistor to the white wire rather than use butt splices??? Is there room to get a soldering iron in there???

You could solder the connections but I think that would be best left to those that have access to a lift. I know I would not want to try and solder sensitive wires while laying on my back under a car that's not too far away from my face, lol.

Quote:

Originally Posted by M3ANMACHINE

I wish I knew how to solder

It's not that hard. If you're really interested, check out some YouTube clips.. it'll give you some great insight on it

.

Quote:

Originally Posted by MPOWERD

I think I will wait a few months to see how this mod really plays out over time.'

I still think the SMG Relay issue is engine overheat related and I will need a bit of convincing that this will solve the issue of failing relays, dropping gears, and the SMG COG light coming on...

I've changed my relay twice, even changed the transmission fluid and installed a new temp sensor for the transmission itself but it did nothing for me

. My oil and water temp stay right in the middle even with the a/c going full blast. The relay is only activated when it's time to prime and or pressurize the pump. Something was causing it to be activated too often... for me it was the temp sensor failing.

daytonaviolet · Fri, Jul-08-2011, 04:27:35 PM

this looks like the GND point under the hood. just wanted to note that this will not remove the GND to the car. its best to remove the GND point at the battery terminal

EmThree4Me · Sat, Jul-09-2011, 06:21:23 AM

Quote:

Originally Posted by daytonaviolet

this looks like the GND point under the hood. just wanted to note that this will not remove the GND to the car. its best to remove the GND point at the battery terminal

ah, no wonder I was still getting power to my halos

I disconnected the positive and negative to make sure... thanks for pointing that out!

realxfresh · Wed, Jul-13-2011, 07:08:29 PM

i think this could be the cure to my smg light which stays on with a really loud fan as well

AltF4 · Wed, Jul-20-2011, 06:08:42 PM

Any update so far? Does it appear to be working?

cntrvrsy · Wed, Jul-20-2011, 09:47:25 PM

Quote:

Originally Posted by AltF4

Any update so far? Does it appear to be working?

Everything has been good so far. It's been in the upper 80s/ 90s lately and my car would have been severely going into '0' but since this resistor... no loss of gears. It's supposed to be 100+ this coming friday... more testing, lol.

AltF4 · Wed, Jul-20-2011, 10:05:31 PM

I just picked everything up at Fry's. I rarely get dropped gears but figured this was worth a shot for the rare occasion it does happen. I really don't drive it in stop and go traffic much...

cntrvrsy · Wed, Jul-20-2011, 10:32:21 PM

Quote:

Originally Posted by AltF4

I just picked everything up at Fry's. I rarely get dropped gears but figured this was worth a shot for the rare occasion it does happen. I really don't drive it in stop and go traffic much...

I wish we had a Fry's around here.. all we have is RadioShack which is not what it used to be. The resistor trick is definitely worth while, I hear it gets hot in Texas, my cousin lives in Austin.

deadlysyns · Wed, Jul-20-2011, 11:59:46 PM

Quote:

Originally Posted by cntrvrsy

I wish we had a Fry's around here.. all we have is RadioShack which is not what it used to be. The resistor trick is definitely worth while, I hear it gets hot in Texas, my cousin lives in Austin.

it's been triple digits the whole week and upcoming week here in the Dallas area.

Fri, Jul-08-2011, 04:27:35 PM	#23
daytonaviolet OEM CSL Whoore Join Date: Jan 2004 Posts: 21,020 Blog Entries: 1 Reputation: 0 Location: Bay Area, California	Re: DIY: Resistor Mod To Cure Summertime SMG Blues this looks like the GND point under the hood. just wanted to note that this will not remove the GND to the car. its best to remove the GND point at the battery terminal __________________ Click my sig and view my pics! Tischer aka GetBmwParts VCSL - Bumper DIY VCSL - Bootlid DIY FS: Rear black door panels FS: Oem trunk

Wed, Jul-13-2011, 07:08:29 PM	#25
realxfresh Registered User Join Date: Feb 2011 Posts: 128 Reputation: 0	Re: DIY: Resistor Mod To Cure Summertime SMG Blues i think this could be the cure to my smg light which stays on with a really loud fan as well

Wed, Jul-20-2011, 06:08:42 PM	#26
AltF4 In for pics... Join Date: Sep 2008 Posts: 3,274 In the garage: '02 BMW M3 Reputation: 0 Location: Austin	Re: DIY: Resistor Mod To Cure Summertime SMG Blues Any update so far? Does it appear to be working? __________________ 2002 E46 M3 ~ SMGII VMR V710 : TR MT01 : ZCP Brakes : StopTech : PFC : AR20 : UUC / Corsa Ground Control Susp/Sway : RE FCAB : DICE : BW : AFE : PF : DEPO : Scoops Coby Wheel : Black Trimming : Custom Alcantera / Brushed Alum Dove Grey

Wed, Jul-20-2011, 10:05:31 PM	#28
AltF4 In for pics... Join Date: Sep 2008 Posts: 3,274 In the garage: '02 BMW M3 Reputation: 0 Location: Austin	Re: DIY: Resistor Mod To Cure Summertime SMG Blues I just picked everything up at Fry's. I rarely get dropped gears but figured this was worth a shot for the rare occasion it does happen. I really don't drive it in stop and go traffic much... __________________ 2002 E46 M3 ~ SMGII VMR V710 : TR MT01 : ZCP Brakes : StopTech : PFC : AR20 : UUC / Corsa Ground Control Susp/Sway : RE FCAB : DICE : BW : AFE : PF : DEPO : Scoops Coby Wheel : Black Trimming : Custom Alcantera / Brushed Alum Dove Grey

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