Reserved

 

Awesome info thank you! So theoretically, if you check your soot values and they read 0 before doing your delete you shouldn't have this issue? Can you manually force a regen with a scan tool?

Also, since you said all 5 temp sensors need to be fooled, does that mean you aren't running any temp sensors in your deleted exhaust to monitor egt's? Or are there others?

 

Awesome info thank you! So theoretically, if you check your soot values and they read 0 before doing your delete you shouldn't have this issue? Can you manually force a regen with a scan tool?

In theory, you can proceed if your soot is 0 already but you need to keep this small tidbit in mind... At one time during my problems, my soot was actually reading zero. The problem was that a regen had not completed once triggered so even though the soot was zero, the soot loading models did not reset, and the regen will still try every key cycle until completed

Also, since you said all 5 temp sensors need to be fooled, does that mean you aren't running any temp sensors in your deleted exhaust to monitor egt's? Or are there others?

That's correct. All 5 sensors are removed and it don't really matter. While they do report temps, they don't react fast enough to be useful for anything tuning related. Also, they are too far down the pipe to be used to for tuning. If you want to monitor egt, pull up an obd scanner and look for egr temp sensor 1, that sensor is in the exhaust manifold. Again, while that one is located in the manifold, it is still the same sensor type that is in the exhaust... Not fast enough of reaction time... And no, scan tools that I know of cannot trigger service regen... Only gm or gm licensed scan tools can do that to my knowkedge

The sensors are not thermocouples, they are thermistors in a protective housing
If you want, find an adapter for the egr temp sensor in the exhaust manifold and install a true thermocouple there and remove the stock sensor. If you unplug the egr you will have not further use for the sensors

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Hmm...why would the manifold and post turn sensors need to be fooled? Those don't seem to change at all during regen since it's all contained downstream.

 

Nobody said anything about fooling the manifold temp sensor... The only sensors that need dummied are egt1-5, and all of those are in the exhaust... If you were referring to the egt1 sensor which is actually located in the downpipe near the bellhousing, that is the pre-cat sensor that let's the ecm know if it is safe to start dosing fuel via post injection to light off in the first cat to raise exhaust temps for the downstream scr that requires heat as well as ammonia to convert NOx to harmless gas and water vapor

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Now that im closer to actually deleting, is this still relevant or has the tuning been changed so this isnt an issue?

 

This is still very much relevant... You can avoid this by ensuring you have done a regen recently and your soot level is less than 20% before you delete. If your ECM had already requested a regen, you may not know it in the early stages. It would be best to postpone your physical delete until after your next regen completes. Then do your delete within the next 100 miles... I'm speculating on the measurements but they should be good enough to get you where you need to be

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Nothing in the way delete tunes are done has changed, nothing has needed them to change... The base that we made almost a year ago is still current and no further advances in the software are needed. This my not apply to all people, this article fits the scope of a very small group of people. I was one of them.... And out of need, a solution will rise

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Hmmm why wasn't I subscribed to this? :serious:

Fixed

 

I don't know! I told you I had a write up a long time ago. Look at my OP date!

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So long story short to be safe do the delete right after a regen if you can?

 

See short story above

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Roger that. Thanks again

 

this might be a dumb question... but how do I view my current soot levels..?

 

In an obd scan tool with gm CANBus capabilities

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I just found this forum. I just deleted and tuned and I am still getting that message on the dic. Anyone figure out how to get rid of it?

 

Download the torque app, then get the ad on for the BiScan tool. There is a service regen, engage it and you'll start to see your soot level go down, then you'll be good.

 

Does anyone have any insight on how to resolve this post delete?

 

Think you need to get with the tune provider. I'm sure there will be interest in your progress.

 

Who's tune you running??

 

never mind saw your build thread.