6.7 DPF Delete...Catalyst Full

Bartic · 10-02-2007, 12:42 AM

Yeah so I got rid of the DPF and straight piped my truck. I saw quite an improvement in responsiveness. Until the catalyst went to 100% full...now the truck is defueling and I only get 18 psi of boost max. Anyone know a way of resetting the catalyst to read 0%...and/or which sensor I need to unplug. Any help would be great.

__________________
07.5, 6.7L, Mega Cab, H&S DPF Delete, Dual 5" Exhaust, Edge w/Attitude, Bully Dog Power Pup, Airaid Intake, FASS Lift Pump, EGR Valve Removed, MP8, 33" Cooper ST's on Factory Rims

Last edited by Bartic : 10-02-2007 at 12:53 AM.

Minzbgr · 10-02-2007, 12:53 AM

Good luck did you look at the other threads about the sytem b4 you did this??????????

__________________
2007.5 Mineral Grey & Light Silver, 6.7L, Auto, Quadcab, 4x4, 4.10, Laremie, Intake Baffle MIA, Tinted Windows, B&W turnover ball, with more addons in the works

jmoser · 10-03-2007, 11:16 AM

Not a sensor issue - the truck will assume DPF is full if it has not regened in so many miles. No DPF = no regen = catalyst full.

I expect this would be an ECU reprogramming issue.

KrazyHouseCustoms · 10-03-2007, 01:56 PM

Stack chips, Bully Dog and TS Perf or Edge and it will run good for now. We have been trying to get rid of the catalyst full reading for a long time now and to no avail, nothing works. It went down to 70% once and the truck ran great, but went back up to 100% in a day or so.

Jay

mud sweat and gears · 10-03-2007, 02:21 PM

If you can figure out the answer to that question you will be one rich newbie!

__________________
2007 Dodge 2500 4X4 5.9L HO Cummins with 4 speed Auto, Quad Cab SLT Thunder Road with Jake Brake, 5" turbo back Cat Delete FBD exhaust and Tekonsha P3 brake control.

Shibbyutman · 10-03-2007, 03:59 PM

Ok guys, this shouldn't be to hard to figure out. Does anybody have the software to properly log data from our trucks like onto a laptop? Once this is done, and you can tell when the truck is in regen and when it is not, you can tell the voltages from the sensors. All you need to do is wire up a set of two resistors for each of the sensors. The switch needs to be a three way style so it has one off and two on positions. On one of the "on" positions you need to put the non-regen resistor values in line. On the other "on" position put resistors for the regen settings. When your truck thinks it needs to regen simply flip the switch let it do its thing, and then switch it off after a time. If you can't log the data, then you need to splice into the sense lines of each sensor individually, and see the values with a meter. Which could take some time.

__________________
2003 Dodge Ram 2500 4X4, PDR Cobra Stage 2 Twins, BD Power 90's, Studs, Springs, Autometers, Dual 7" Black Stacks/rain caps, Banks intercooler, Goerend Full Built Trans, Smarty set to Kill, MP-8, Full DIY CP3 Mod, Rail capped

, FASS 150/150, and big line kit.

CW6.7 · 10-03-2007, 10:22 PM

I HATE DODGE!!! Why can't they make it as easy to hack into as Duramax!!! I have a Cummins Data log box in my truck. We can get into the box... but???? The data doesnt' mean anything .... YET! Nothin but 1's and 0's.... no link to what any of it means?

dieseltrkman · 10-04-2007, 11:54 AM

Just my .02 but if you fool the computer into thinking there is a dpf on your truck but there is not one. Then it needs to regen anyway due to time frame. Then you fool it to regen anyway without a dpf what about all the raw fuel going into the exhaust. Hot exhaust raw fuel cool air at exit equals flame thrower.

As far as reading the computer you will need to know the data link speed. Do the cummins ecm use the same data link as the big truck engines i know the computers look similar.

If so then cummins truck engines use J1708 or J1939. If that is the case then a pdm magic key will work for a translator. Then the question is what computer software will talk with the ecm. Cummins uses insight software on the big truck engines.

Shibbyutman · 10-04-2007, 12:53 PM

flame thrower, sweet, still not seeing a problem here

__________________
2003 Dodge Ram 2500 4X4, PDR Cobra Stage 2 Twins, BD Power 90's, Studs, Springs, Autometers, Dual 7" Black Stacks/rain caps, Banks intercooler, Goerend Full Built Trans, Smarty set to Kill, MP-8, Full DIY CP3 Mod, Rail capped

, FASS 150/150, and big line kit.

***Brayden*** · 12-19-2007, 10:04 AM

PDM MagiKey won't talk 500K CAN just 250k. IIRC the 6.7 went up to CAN2 500kbps.

You would need a Softing GmbH CanCardII or similar interface. Or mongoose cable which is much cheaper.. But still you aren't going to be able to do anything without software.

Black08 · 12-19-2007, 02:13 PM

you guys should seriously consider just buying the DPF delete from H&S. They've got the regen issues sewed up.

__________________
2008 QCSB Brilliant Black Crystal
Big Horn Edition 6.7 A6 4x4

***Ram3500Dually*** · 12-19-2007, 06:50 PM

Quote:

Originally Posted by Black08

you guys should seriously consider just buying the DPF delete from H&S. They've got the regen issues sewed up.

They do? From what I have read they still have some codes being thrown and they still go into regen every once in awhile.

__________________

2008 Ram 3500 CTD 6.7/68RE/3:73 LSD (It was built right, nothing fell off)
Previous Rams: 1990 CC Dually, 1994 RC LB, 1995 CC SB, 1998 QC Dually,
2000 QC Dually, 2001 QC Off Road, 2003 QC Dually, 2005 QC Dually
REAL TRUCKS DON'T HAVE SPARK PLUGS

10-02-2007, 12:42 AM	#1 (permalink)
Bartic Newbie Join Date: Aug 2007 Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts Bartic's Truck Pics	6.7 DPF Delete...Catalyst Full Yeah so I got rid of the DPF and straight piped my truck. I saw quite an improvement in responsiveness. Until the catalyst went to 100% full...now the truck is defueling and I only get 18 psi of boost max. Anyone know a way of resetting the catalyst to read 0%...and/or which sensor I need to unplug. Any help would be great. __________________ 07.5, 6.7L, Mega Cab, H&S DPF Delete, Dual 5" Exhaust, Edge w/Attitude, Bully Dog Power Pup, Airaid Intake, FASS Lift Pump, EGR Valve Removed, MP8, 33" Cooper ST's on Factory Rims Last edited by Bartic : 10-02-2007 at 12:53 AM.

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10-02-2007, 12:53 AM	#2 (permalink)
Minzbgr CUMMINS BELIEVER!!!! Join Date: Sep 2007 Location: South Mississippi Posts: 116 Thanks: 0 Thanked 0 Times in 0 Posts Minzbgr's Truck Pics	Good luck did you look at the other threads about the sytem b4 you did this?????????? __________________ 2007.5 Mineral Grey & Light Silver, 6.7L, Auto, Quadcab, 4x4, 4.10, Laremie, Intake Baffle MIA, Tinted Windows, B&W turnover ball, with more addons in the works

10-03-2007, 11:16 AM	#3 (permalink)
jmoser Newbie Join Date: Apr 2007 Posts: 24 Thanks: 0 Thanked 0 Times in 0 Posts jmoser's Truck Pics	Not a sensor issue - the truck will assume DPF is full if it has not regened in so many miles. No DPF = no regen = catalyst full. I expect this would be an ECU reprogramming issue.

10-03-2007, 01:56 PM	#4 (permalink)
KrazyHouseCustoms Newbie Join Date: Aug 2007 Posts: 16 Thanks: 0 Thanked 0 Times in 0 Posts KrazyHouseCustoms's Truck Pics	Stack chips, Bully Dog and TS Perf or Edge and it will run good for now. We have been trying to get rid of the catalyst full reading for a long time now and to no avail, nothing works. It went down to 70% once and the truck ran great, but went back up to 100% in a day or so. Jay

10-03-2007, 02:21 PM	#5 (permalink)
mud sweat and gears Yes, it is a large pipe! Join Date: Jul 2007 Location: Canastota, NY Posts: 246 Thanks: 0 Thanked 0 Times in 0 Posts mud sweat and gears's Truck Pics	If you can figure out the answer to that question you will be one rich newbie! __________________ 2007 Dodge 2500 4X4 5.9L HO Cummins with 4 speed Auto, Quad Cab SLT Thunder Road with Jake Brake, 5" turbo back Cat Delete FBD exhaust and Tekonsha P3 brake control.

10-03-2007, 03:59 PM	#6 (permalink)
Shibbyutman Diesel Head Join Date: Sep 2006 Location: Superior Township, Michigan Posts: 4,118 Thanks: 0 Thanked 170 Times in 120 Posts Shibbyutman's Truck Pics	Ok guys, this shouldn't be to hard to figure out. Does anybody have the software to properly log data from our trucks like onto a laptop? Once this is done, and you can tell when the truck is in regen and when it is not, you can tell the voltages from the sensors. All you need to do is wire up a set of two resistors for each of the sensors. The switch needs to be a three way style so it has one off and two on positions. On one of the "on" positions you need to put the non-regen resistor values in line. On the other "on" position put resistors for the regen settings. When your truck thinks it needs to regen simply flip the switch let it do its thing, and then switch it off after a time. If you can't log the data, then you need to splice into the sense lines of each sensor individually, and see the values with a meter. Which could take some time. __________________ 2003 Dodge Ram 2500 4X4, PDR Cobra Stage 2 Twins, BD Power 90's, Studs, Springs, Autometers, Dual 7" Black Stacks/rain caps, Banks intercooler, Goerend Full Built Trans, Smarty set to Kill, MP-8, Full DIY CP3 Mod, Rail capped , FASS 150/150, and big line kit.

10-03-2007, 10:22 PM	#7 (permalink)
CW6.7 Diesel Freak Join Date: Jul 2007 Location: Indiana Posts: 721 Thanks: 11 Thanked 29 Times in 22 Posts CW6.7's Truck Pics	I HATE DODGE!!! Why can't they make it as easy to hack into as Duramax!!! I have a Cummins Data log box in my truck. We can get into the box... but???? The data doesnt' mean anything .... YET! Nothin but 1's and 0's.... no link to what any of it means?

10-04-2007, 11:54 AM	#8 (permalink)
dieseltrkman Newbie Join Date: Aug 2007 Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts dieseltrkman's Truck Pics	Just my .02 but if you fool the computer into thinking there is a dpf on your truck but there is not one. Then it needs to regen anyway due to time frame. Then you fool it to regen anyway without a dpf what about all the raw fuel going into the exhaust. Hot exhaust raw fuel cool air at exit equals flame thrower. As far as reading the computer you will need to know the data link speed. Do the cummins ecm use the same data link as the big truck engines i know the computers look similar. If so then cummins truck engines use J1708 or J1939. If that is the case then a pdm magic key will work for a translator. Then the question is what computer software will talk with the ecm. Cummins uses insight software on the big truck engines.

10-04-2007, 12:53 PM	#9 (permalink)
Shibbyutman Diesel Head Join Date: Sep 2006 Location: Superior Township, Michigan Posts: 4,118 Thanks: 0 Thanked 170 Times in 120 Posts Shibbyutman's Truck Pics	flame thrower, sweet, still not seeing a problem here __________________ 2003 Dodge Ram 2500 4X4, PDR Cobra Stage 2 Twins, BD Power 90's, Studs, Springs, Autometers, Dual 7" Black Stacks/rain caps, Banks intercooler, Goerend Full Built Trans, Smarty set to Kill, MP-8, Full DIY CP3 Mod, Rail capped , FASS 150/150, and big line kit.

12-19-2007, 10:04 AM	#10 (permalink)
*Brayden* Cummins Fanatic Join Date: Dec 2007 Location: North Salem, IN Posts: 199 Thanks: 1 Thanked 5 Times in 3 Posts Brayden's Truck Pics	PDM MagiKey won't talk 500K CAN just 250k. IIRC the 6.7 went up to CAN2 500kbps. You would need a Softing GmbH CanCardII or similar interface. Or mongoose cable which is much cheaper.. But still you aren't going to be able to do anything without software.

12-19-2007, 02:13 PM	#11 (permalink)
Black08 Cummins Fanatic Join Date: Aug 2007 Location: Troutman, NC Posts: 195 Thanks: 0 Thanked 0 Times in 0 Posts Black08's Truck Pics	you guys should seriously consider just buying the DPF delete from H&S. They've got the regen issues sewed up. __________________ 2008 QCSB Brilliant Black Crystal Big Horn Edition 6.7 A6 4x4