Exhaust brake disabled in ECM? - Competition Diesel.Com

Got Smoke? · 07-13-2017, 08:21 PM

Ok been trying to figure out why my exhaust brake has never worked since I've owned the truck (2 year ago). Been working with a local mechanic friend recently and he mentioned he had seen them disabled in the ECM at the time his scan tool was not cooperating to check my truck out.

Took him my truck last week to install my Steed Speed manifold, clean my VGT, and try to get the brake to work once again. In the recent months he had hired a new tech who has an Autel scan tool. He was able to communicate with my ECM and see that my exhaust brake is not enabled, but when he tried to enable it it gives an error message?

Anybody seen this before? Got any idea's for a solution? Would really love to get the brake working because I will be towing my 12 valve pretty regularly soon to the drag strips.

Thanks!

Mark Nixon · 07-13-2017, 09:45 PM

Never heard of this?
Anyone else?

Mark.

BigPapa · 07-14-2017, 06:17 AM

Hey, I see Happy Birthday wishes are in order!

Happy Birthday, Mark.

biggy238 · 07-14-2017, 06:41 AM

Another day older and deeper in debt.

We have to enable/disable the brake on the commercial units all the time.

I'm not sure how the Chrysler programming works, but wheel brake events can disable the engine brake to prevent a skid/jack knife on commercial engines.

Sent from my XT1575 using Tapatalk

maxwedgehead · 07-14-2017, 11:03 AM

I have heard this one other time, when I worked at the dealership, I never seen the option to do this with wiitech, but also I never looked. I have a friend who has a truck that the brake has never worked on, swapped turbos, didn't fix it, put a new switch in it and still doesn't work. Then someone told him that the dealership could disable it and enable it. Might be worth a shot to go to the dealer, but make sure you talked to a tech that actually knows whats going on.

Got Smoke? · 07-14-2017, 08:33 PM

Quote:

Originally Posted by BigPapa

Hey, I see Happy Birthday wishes are in order!

Happy Birthday, Mark.

Thanks Scott! Bossman gave me a nice 11 hour work day today

Quote:

Originally Posted by biggy238

Another day older and deeper in debt.

We have to enable/disable the brake on the commercial units all the time.

I'm not sure how the Chrysler programming works, but wheel brake events can disable the engine brake to prevent a skid/jack knife on commercial engines.

Sent from my XT1575 using Tapatalk

Apparently this is going to be my last resort

Quote:

Originally Posted by maxwedgehead

I have heard this one other time, when I worked at the dealership, I never seen the option to do this with wiitech, but also I never looked. I have a friend who has a truck that the brake has never worked on, swapped turbos, didn't fix it, put a new switch in it and still doesn't work. Then someone told him that the dealership could disable it and enable it. Might be worth a shot to go to the dealer, but make sure you talked to a tech that actually knows whats going on.

I plan to talk with my local stealership next week once I have the truck back to see what they have to say and how much they would be charging for 5 minutes worth of work.

Cummins610 · 07-16-2017, 02:35 PM

Do you have the dash button or is your truck a early cab and chassis model?

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Got Smoke? · 08-06-2017, 07:56 AM

Quote:

Originally Posted by Cummins610

Do you have the dash button or is your truck a early cab and chassis model?

Sent from my iPhone using Tapatalk

My truck is a 2500 mega it has the dash button which does nothing when turned on.

Sent from the command position of my dinosaur

Got Smoke? · 08-06-2017, 08:15 AM

Quote:

Originally Posted by biggy238

Another day older and deeper in debt.

We have to enable/disable the brake on the commercial units all the time.

I'm not sure how the Chrysler programming works, but wheel brake events can disable the engine brake to prevent a skid/jack knife on commercial engines.

Sent from my XT1575 using Tapatalk

Talked to the "shop foreman" at my local dealer a week ago Kyle, and he was an absolute idiot to say the least. He claimed my issue wasn't in my ECM, but It was with my tuner. Said that my tuner had it disabled and didn't know what he was doing (FirePunk). He told me he would have to reflash my ECM to enable the brake, and it would cause me to lose my EFI tuning. Then as soon as I flashed my EFI back on I'd lose my brake again. Was very hard not to turn and walk away when he said Lavon didn't know what he was doing as a tuner.

Sent from the command position of my dinosaur

biggy238 · 08-06-2017, 01:24 PM

Hahahahahahahahahzhzzh

The idiot at Martin Dodge in bowling Green told me that they wouldn't replace the torn fan wiring on mine because we had just installed a 2" KORE lift and "we see that all the time".

I got out before cops were called.

Simple enough, the EFI guru's should be able to tell us what can and cannot be done in regard to the brake.

Sent from my XT1575 using Tapatalk

Got Smoke? · 08-06-2017, 08:14 PM

Quote:

Originally Posted by biggy238

Hahahahahahahahahzhzzh

The idiot at Martin Dodge in bowling Green told me that they wouldn't replace the torn fan wiring on mine because we had just installed a 2" KORE lift and "we see that all the time".

I got out before cops were called.

Simple enough, the EFI guru's should be able to tell us what can and cannot be done in regard to the brake.

Sent from my XT1575 using Tapatalk

I hung out with the FP guys a lot at Rocky Top last weekend, Lavon said he had seen my post's either here or on FB and had already checked my EFI tune file from when I ordered back in March and the VGT was enabled. He had me do a datalog and send to him, but I didn't get it emailed out until late Friday night.

diesel_importer · 08-06-2017, 10:36 PM

Dealership can enable/disable the brake. Sometimes when ECMs are replaced, the exhaust brake function isn't enabled. Your button will light up, but the turbo won't even attempt to close down. It takes all of 2 minutes to enable it.

Sent from my iPhone using Tapatalk

biggy238 · 08-07-2017, 07:07 AM

It would be nice to have a list of tuner friendly dealerships. Not that they will do warranty work, but just that they aren't going to act like fools over something simple.

Sent from my XT1575 using Tapatalk

chevota84 · 08-07-2017, 09:29 AM

Quote:

Originally Posted by biggy238

It would be nice to have a list of tuner friendly dealerships. Not that they will do warranty work, but just that they aren't going to act like fools over something simple.

Sent from my XT1575 using Tapatalk

Reminded me of this

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diesel_importer · 08-07-2017, 11:13 AM

!

Got Smoke? · 08-09-2017, 07:47 PM

Lavon had me send him some datalog's this week.... we spoke very briefly this afternoon...he's going to send me some hobbit magic to reset the ECM then have me download my CSP5 tune again. Here's to hoping it work!!

4x4dually · 08-10-2017, 02:53 PM

diesel_importer · 08-11-2017, 10:15 AM

good deal. I had already tuned mine with EFI Live. I just went by the dealership my buddy works at and he hooked up to it. It took a minute to find the option, but it wasn't enabled when they replaced the ECM before I bought the pickup.

BRE · 08-11-2017, 10:51 AM

If you swap that junk POS good for nothing turbo off of it, you wouldn't have to worry about this.... #justsayin

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ComnRailPwr · 08-11-2017, 10:55 AM

This is interesting. I just sent an autocal to FL because he had issues with his previous tuner. The trucks turbo brake never worked. After the flash the turbo brake now works great. The incorrect base file can cause the turbo brake to not work. Most tuners slu+ out the same base file for all their tunes. This works majority of the time but is not the correct way to write tunes. This may not be relevant to your issue but worth noting.

07-13-2017, 08:21 PM	#1
Got Smoke? Name: Got Smoke? Title: Too Much Time Status: Not Here Join Date: Oct 2006 Location: Gallatin,TN Member`s Gallery Posts: 4,728	Exhaust brake disabled in ECM? Ok been trying to figure out why my exhaust brake has never worked since I've owned the truck (2 year ago). Been working with a local mechanic friend recently and he mentioned he had seen them disabled in the ECM at the time his scan tool was not cooperating to check my truck out. Took him my truck last week to install my Steed Speed manifold, clean my VGT, and try to get the brake to work once again. In the recent months he had hired a new tech who has an Autel scan tool. He was able to communicate with my ECM and see that my exhaust brake is not enabled, but when he tried to enable it it gives an error message? Anybody seen this before? Got any idea's for a solution? Would really love to get the brake working because I will be towing my 12 valve pretty regularly soon to the drag strips. Thanks! __________________ Mark 2007 2500 Mega 68RFE FirePunk EFI/CSP5 & TCM tuning, Edge CTS II. 1997 2500 Jokerfab cyl head, PDR street cam, FDS benched pump, DFI 5x18's, HX35 63/67, FirePunk 47RE & anteater. 2003 Jetta TDI 5spd "DZL WGN" lot's of mods

07-13-2017, 09:45 PM	#2
Mark Nixon Name: Mark Nixon Title: No Savior among the flesh Status: Not Here Join Date: Feb 2009 Location: Brownville, Nebraska Member`s Gallery Posts: 8,676	Never heard of this? Anyone else? Mark. __________________ If you or I did business like the PEOPLE in government do business, we'd be put in jail. Government is coercive. Anarchy: The state of existence where there are no masters & no slaves. Therefore, Anarchy means the ABSENCE OF SLAVERY, or, in other words, FREEDOM.

07-14-2017, 06:17 AM	#3
BigPapa Name: BigPapa Title: Truckless Status: Not Here Join Date: Jan 2008 Location: Springfield, TN Member`s Gallery Posts: 5,036	Hey, I see Happy Birthday wishes are in order! Happy Birthday, Mark. __________________ Scott 2003 Avalanche Z71 Common sense is like deodorant. The people that need it most never use it.

07-14-2017, 06:41 AM	#4
biggy238 Name: biggy238 Title: Too Much Time Status: Here Join Date: Aug 2008 Location: Just North of Wrong Member`s Gallery Posts: 10,865	Another day older and deeper in debt. We have to enable/disable the brake on the commercial units all the time. I'm not sure how the Chrysler programming works, but wheel brake events can disable the engine brake to prevent a skid/jack knife on commercial engines. Sent from my XT1575 using Tapatalk __________________ Check out @bdmaximusworx 05.5 Campanella White TDi Jetta 5spd 45.5MPG -Little Sexy '10 Silver F250 CCLB 4X4 6.4L cummins Swapped Insta @trash.panda250

07-14-2017, 11:03 AM	#5
maxwedgehead Name: maxwedgehead Title: Too Much Time Status: Not Here Join Date: Nov 2010 Location: West Plains, MO Member`s Gallery Posts: 850	I have heard this one other time, when I worked at the dealership, I never seen the option to do this with wiitech, but also I never looked. I have a friend who has a truck that the brake has never worked on, swapped turbos, didn't fix it, put a new switch in it and still doesn't work. Then someone told him that the dealership could disable it and enable it. Might be worth a shot to go to the dealer, but make sure you talked to a tech that actually knows whats going on. __________________ 15 Mega Cab Dually 03 RCSB 1500 12 valve 215 pump, built 47re, 5x18s, 4k gsk, sxe369, Fass 240, 7mm delivery valves, 11.71 08 RCSB 1500 06 CR built 48re, Compounds, 200% over, 12mm, Billet rod motor, etc.. 2009 CCSB 6.7L

07-16-2017, 02:35 PM	#7
Cummins610 Name: Cummins610 Title: Rookie Status: Not Here Join Date: Oct 2009 Location: Alberta Member`s Gallery Posts: 455	Do you have the dash button or is your truck a early cab and chassis model? Sent from my iPhone using Tapatalk __________________ 2005 CR - 1389hp with spray, S4 Single

08-06-2017, 01:24 PM	#10
biggy238 Name: biggy238 Title: Too Much Time Status: Here Join Date: Aug 2008 Location: Just North of Wrong Member`s Gallery Posts: 10,865	Hahahahahahahahahzhzzh The idiot at Martin Dodge in bowling Green told me that they wouldn't replace the torn fan wiring on mine because we had just installed a 2" KORE lift and "we see that all the time". I got out before cops were called. Simple enough, the EFI guru's should be able to tell us what can and cannot be done in regard to the brake. Sent from my XT1575 using Tapatalk __________________ Check out @bdmaximusworx 05.5 Campanella White TDi Jetta 5spd 45.5MPG -Little Sexy '10 Silver F250 CCLB 4X4 6.4L cummins Swapped Insta @trash.panda250

08-06-2017, 10:36 PM	#12
diesel_importer Name: diesel_importer Title: Too Much Time Status: Not Here Join Date: Oct 2007 Location: Fairfield,TX Member`s Gallery Posts: 4,501	Dealership can enable/disable the brake. Sometimes when ECMs are replaced, the exhaust brake function isn't enabled. Your button will light up, but the turbo won't even attempt to close down. It takes all of 2 minutes to enable it. Sent from my iPhone using Tapatalk __________________ 01 QCSB 2WD AUTO: Redline/Smarty, Monster VP, 6x.013, S467 FMW, Goerend Trans, Caltracs. Fuel only - 11.85 @ 114, 50 Shot - 11.58 @ 116 w/ 1.69 60'

08-07-2017, 07:07 AM	#13
biggy238 Name: biggy238 Title: Too Much Time Status: Here Join Date: Aug 2008 Location: Just North of Wrong Member`s Gallery Posts: 10,865	It would be nice to have a list of tuner friendly dealerships. Not that they will do warranty work, but just that they aren't going to act like fools over something simple. Sent from my XT1575 using Tapatalk __________________ Check out @bdmaximusworx 05.5 Campanella White TDi Jetta 5spd 45.5MPG -Little Sexy '10 Silver F250 CCLB 4X4 6.4L cummins Swapped Insta @trash.panda250

08-07-2017, 11:13 AM	#15
diesel_importer Name: diesel_importer Title: Too Much Time Status: Not Here Join Date: Oct 2007 Location: Fairfield,TX Member`s Gallery Posts: 4,501	! __________________ 01 QCSB 2WD AUTO: Redline/Smarty, Monster VP, 6x.013, S467 FMW, Goerend Trans, Caltracs. Fuel only - 11.85 @ 114, 50 Shot - 11.58 @ 116 w/ 1.69 60'

08-09-2017, 07:47 PM	#16
Got Smoke? Name: Got Smoke? Title: Too Much Time Status: Not Here Join Date: Oct 2006 Location: Gallatin,TN Member`s Gallery Posts: 4,728	Lavon had me send him some datalog's this week.... we spoke very briefly this afternoon...he's going to send me some hobbit magic to reset the ECM then have me download my CSP5 tune again. Here's to hoping it work!! __________________ Mark 2007 2500 Mega 68RFE FirePunk EFI/CSP5 & TCM tuning, Edge CTS II. 1997 2500 Jokerfab cyl head, PDR street cam, FDS benched pump, DFI 5x18's, HX35 63/67, FirePunk 47RE & anteater. 2003 Jetta TDI 5spd "DZL WGN" lot's of mods

08-10-2017, 02:53 PM	#17
4x4dually Name: 4x4dually Title: Moderator Status: Not Here Join Date: Jan 2007 Location: Stillwater, OK Member`s Gallery Posts: 31,812

08-11-2017, 10:15 AM	#18
diesel_importer Name: diesel_importer Title: Too Much Time Status: Not Here Join Date: Oct 2007 Location: Fairfield,TX Member`s Gallery Posts: 4,501	good deal. I had already tuned mine with EFI Live. I just went by the dealership my buddy works at and he hooked up to it. It took a minute to find the option, but it wasn't enabled when they replaced the ECM before I bought the pickup. __________________ 01 QCSB 2WD AUTO: Redline/Smarty, Monster VP, 6x.013, S467 FMW, Goerend Trans, Caltracs. Fuel only - 11.85 @ 114, 50 Shot - 11.58 @ 116 w/ 1.69 60'

08-11-2017, 10:55 AM	#20
ComnRailPwr Name: ComnRailPwr Title: Too Much Time Status: Not Here Join Date: Jun 2009 Location: Stoutsville , OH Member`s Gallery Posts: 3,293	This is interesting. I just sent an autocal to FL because he had issues with his previous tuner. The trucks turbo brake never worked. After the flash the turbo brake now works great. The incorrect base file can cause the turbo brake to not work. Most tuners slu+ out the same base file for all their tunes. This works majority of the time but is not the correct way to write tunes. This may not be relevant to your issue but worth noting.