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EFILive Tuning Software Discuss custom tuning & data logging the LB7, LLY, LBZ & LMM Duramax engines as well as the Allison transmission with EFILive software.


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Old 09-25-2014, 12:31 PM   #1 (permalink)
FBJR
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DSP5 disconnect question/emissions?

OK, 06 LBZ with DSP5 and IRob tuning. Has always passed OK, just set to stock tune (#1) and run her through. Even when they hooked up to the ADL port. (good ol Kali)

Anyway, did the same this year and they have a new emissions machine that say it won't communicate with the trucks ECM, 2 places now. Other wise all looks good.

Only change over the last few years is I bypassed the grid heater, changed to "don't report" and all seemed good.

Can I just unplug the DSP5 switch (which should run my stock tune) or should I flash the stock tune back in? Thinking it might show a "trace" with the wiring.

Just same from the dealer, they want $135 just to look at it. I do run a CTS without tuning for gauges.

Ideas?

THX

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2006 LBZ, CCSB 285/75-17 Toyo Open Country on 17x8 ATX wheels, Snugtop Shell. Titan 52 gal tank, Mag-Hytec trans-rear covers.
TTT mirrors and Bedslider. PPE intake mod, EGR plate, PVC mod, 4 in MPRB-No Muffler, Edge CTS Gauge Pod. EFILive DSP5 via Idaho Rob.
Leveled with Cognito UCA, HD Tie Rods and keys, 3" rear blocks with Bilstien 5100s all around.
Ruenel Rear and Winch Ready Front bumper, both DIY bedlined.
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Old 09-25-2014, 12:48 PM   #2 (permalink)
CNY6.5TD
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If your DSP5 tune is written "the right way" Non DSP should be your hottest tune. Unplugging the switch is risky, they are very difficult to get out of the ECM without ruining the plugs.

Try and connect to the ECM with the EFI live scan tool. No communication is usually an issue with a lack of power to the OBD2 port.

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01 GMC 2500hd ecsb Dmax/Alli. 4" exhaust to 5" single stack,EDGE Insight CTS, EFI Ridge Runner DSP5, Suncoast stage IV, Kryptonite center link/tierods, PISK by ME, 305/55/R20 Cooper Zeon's on Rockstars. Eaton E-locker. So cal stage I heads, and a little bit of laughing gas, Flex-a-lite electric fans.

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Old 09-25-2014, 01:17 PM   #3 (permalink)
FBJR
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It was written by Idaho Rob, sure it is done right. All I was thinking was to cut the wires and add a plug so it could be reconnected at anytime, no pin removal.

I just saw there was an upgrade on EFI and was going to DL that, but think I will just plug her in to see what happens first.

Just wanted to have research going as I do try other things.

THX
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2006 LBZ, CCSB 285/75-17 Toyo Open Country on 17x8 ATX wheels, Snugtop Shell. Titan 52 gal tank, Mag-Hytec trans-rear covers.
TTT mirrors and Bedslider. PPE intake mod, EGR plate, PVC mod, 4 in MPRB-No Muffler, Edge CTS Gauge Pod. EFILive DSP5 via Idaho Rob.
Leveled with Cognito UCA, HD Tie Rods and keys, 3" rear blocks with Bilstien 5100s all around.
Ruenel Rear and Winch Ready Front bumper, both DIY bedlined.
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Old 09-25-2014, 01:51 PM   #4 (permalink)
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Quote:
Originally Posted by CNY6.5TD View Post
If your DSP5 tune is written "the right way" Non DSP should be your hottest tune. Unplugging the switch is risky, they are very difficult to get out of the ECM without ruining the plugs.

Try and connect to the ECM with the EFI live scan tool. No communication is usually an issue with a lack of power to the OBD2 port.
NO, it can be written however you like it to be. It is actually NOT reccomended to make your hot tune your base(NON DSP) file because if something happens to your switch say while your towing, do you really want your truck set on kil with 10K in tow. You want all of your limiters in your base file and such to work with your big tune, but you can put the big tune in whatever position you want. As for your DSP5 tune, it should have zero bearing on wether or not they can communicate with your ECM. The DSP files do not do anything to effect diagnostics with any scanner I have ever tried.
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Old 09-25-2014, 02:21 PM   #5 (permalink)
FBJR
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That is what I thought, it should work fine. That makes sense to have so called "default" the stock tune if chosen.

Just wondering since cali is always pushing harder for control and with "couple" things turned to off, don't report if it would affect it. Since I get no CEL it should pass fine.
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2006 LBZ, CCSB 285/75-17 Toyo Open Country on 17x8 ATX wheels, Snugtop Shell. Titan 52 gal tank, Mag-Hytec trans-rear covers.
TTT mirrors and Bedslider. PPE intake mod, EGR plate, PVC mod, 4 in MPRB-No Muffler, Edge CTS Gauge Pod. EFILive DSP5 via Idaho Rob.
Leveled with Cognito UCA, HD Tie Rods and keys, 3" rear blocks with Bilstien 5100s all around.
Ruenel Rear and Winch Ready Front bumper, both DIY bedlined.
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Old 09-25-2014, 04:10 PM   #6 (permalink)
jay p
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Is it possible the fuse for power to the ADL port is blown?

Jay
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Old 09-25-2014, 08:43 PM   #7 (permalink)
FBJR
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Quote:
Originally Posted by jay p View Post
Is it possible the fuse for power to the ADL port is blown?

Jay
Nope, it works fine. In fact the CTS still works fine and tried 2 scanners that worked fine.

I took it to another test station and it failed again (3 now), it says "test aborted" on the readouts. All 3 it failed to fully communicate with C A R B after all other tests were passed. All I can figure is the DSP is interfering somehow.

I set the DSP to #1 and and double check that codes are clear just as I go in. Plated EGR and heater grid is out.
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2006 LBZ, CCSB 285/75-17 Toyo Open Country on 17x8 ATX wheels, Snugtop Shell. Titan 52 gal tank, Mag-Hytec trans-rear covers.
TTT mirrors and Bedslider. PPE intake mod, EGR plate, PVC mod, 4 in MPRB-No Muffler, Edge CTS Gauge Pod. EFILive DSP5 via Idaho Rob.
Leveled with Cognito UCA, HD Tie Rods and keys, 3" rear blocks with Bilstien 5100s all around.
Ruenel Rear and Winch Ready Front bumper, both DIY bedlined.
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Old 09-25-2014, 10:39 PM   #8 (permalink)
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IS it failing because it isn't seeing a test run by the ECM is the question. I don't know if diesels have emissions readiness monitors like gassers have or not since I don't ever worry about the emissions portion. Having a DSP switch installed will have no bearing on it reading the ECM. The computer may be looking for feedback it isn't seeing, and that is why your failing.
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Old 09-25-2014, 10:59 PM   #9 (permalink)
FBJR
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Wish I could answer that, it just says aborted. My understand that in kali they let the 2002+ vehicles use OBDII to tell them if the emissions are working and verify the vin with the PCM.

Perhaps since I have some reporting turned off, it senses a diff tune than stock??

Might be time to plop a finger stick in it so it sees a stock "tune" there.

Is there a bypass like the stick for the grid? IE; no grid but the PCM sees a grid and the emission side is happy.
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2006 LBZ, CCSB 285/75-17 Toyo Open Country on 17x8 ATX wheels, Snugtop Shell. Titan 52 gal tank, Mag-Hytec trans-rear covers.
TTT mirrors and Bedslider. PPE intake mod, EGR plate, PVC mod, 4 in MPRB-No Muffler, Edge CTS Gauge Pod. EFILive DSP5 via Idaho Rob.
Leveled with Cognito UCA, HD Tie Rods and keys, 3" rear blocks with Bilstien 5100s all around.
Ruenel Rear and Winch Ready Front bumper, both DIY bedlined.
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Old 09-26-2014, 07:13 AM   #10 (permalink)
c20elephant
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FBJR, where do you live, California?

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