2017 silverado 6.2l dod/afm delete start up idle issues when warm

[w313zrd]

hey all, while i learn how to search these forums and get more familiar with the capabilities of the tuner and my truck. a story and an issue... and a run n tune if i can upload em

~175k miles got a tick, took to a shop... bent push rod; replaced added afm/dod obdDongle.
~+3k new tick when warm... wiped out the cam; new dod/afm delete stock replacement(cam-stuff), VLOM delete valley plate, .. can add the details from the part listed on the repair invoice i did not do it but now wish i had... got the truck back rough idle, low power put 500miles on as requested by the shop, they finished the tune up(plugs n wires missed on the "cam replace" i needed a new throttle body... i investigate and find a broken piece of the VLOM taped up under the intake, not tied down ready to bump out and tie up in the belt... no more turning over to a shop for me...

~+300miles bought the tuner here... gone in and upped(played with the idle ~50-150RPM), eliminated the DOD/AFM & associated VlomDTCs, so i could get rid of the dongle. my throwing money at it has since replaced the MAF, MAP, PURGE valve as i can get to them with my currently limited toolbelt.

idle is still dropping below set ranges upon warm starts. throwing a P0506 once a day.

so there it is what i promised.. (wait the upload, these guys need data...)
im sure ive not got enough information on this log so sensor configuration help is always welcomed.
my deductions are leading me to clogged cat, bad o2s, leaky injectors? i need professional help in a multitude of ways now...

any advice welcomed. and if ridiculing please be clear with your sarcasm(some may just think your an a-hole)20250627-idleissues-on-start.hpl20250622_post-idleup100-75-variiedrpm.hpt.


Will
2017 Silverado LTZ, KnN cold(LOL) air intake,

[RaceReadyTuning]

hey all, while i learn how to search these forums and get more familiar with the capabilities of the tuner and my truck. a story and an issue... and a run n tune if i can upload em

~175k miles got a tick, took to a shop... bent push rod; replaced added afm/dod obdDongle.
~+3k new tick when warm... wiped out the cam; new dod/afm delete stock replacement(cam-stuff), VLOM delete valley plate, .. can add the details from the part listed on the repair invoice i did not do it but now wish i had... got the truck back rough idle, low power put 500miles on as requested by the shop, they finished the tune up(plugs n wires missed on the "cam replace" i needed a new throttle body... i investigate and find a broken piece of the VLOM taped up under the intake, not tied down ready to bump out and tie up in the belt... no more turning over to a shop for me...

~+300miles bought the tuner here... gone in and upped(played with the idle ~50-150RPM), eliminated the DOD/AFM & associated VlomDTCs, so i could get rid of the dongle. my throwing money at it has since replaced the MAF, MAP, PURGE valve as i can get to them with my currently limited toolbelt.

idle is still dropping below set ranges upon warm starts. throwing a P0506 once a day.

so there it is what i promised.. (wait the upload, these guys need data...)
im sure ive not got enough information on this log so sensor configuration help is always welcomed.
my deductions are leading me to clogged cat, bad o2s, leaky injectors? i need professional help in a multitude of ways now...

any advice welcomed. and if ridiculing please be clear with your sarcasm(some may just think your an a-hole)20250627-idleissues-on-start.hpl20250622_post-idleup100-75-variiedrpm.hpt.


Will
2017 Silverado LTZ, KnN cold(LOL) air intake,

The tune file looks to be completely stock aside from messing with idle and setting DOD to disable.
Did really dig too much but see if this helps get you at least started and idling so you can get the rest dialed in.
(This is in thought that your DOD Delete cam still uses VVT)

If you need more help and it's more of a diagnostics issue I can send you my channel configurations and we can look deeper into it.

20250622_post-idleup100-75-variiedrpm - RR.1.hpt

[w313zrd]

thanks!
ill dig into (get a chance to play again) probably this weekend, i dropped all the idle rpm to a baseline+100, it seems to be smoother but hot starts it still get stumbly, and the initial take off is choppy.. but no codes thrown yet, (knocking on wood)

the cam, as ive been told, is https://www.melling.com/3-8-24-new-d...m-6-2l-mc1437/ i couldn't find much info on it. other than duration & overlap info stated stock.

lifters i believe are these: https://www.summitracing.com/parts/sum-htlskit2

dod delete plate: https://www.texas-speed.com/p-7642-t...1-l83-l86.aspx
performance push rods, seals, an oil sending unit, other parts seemingly inconsequential at this point but if more details are an aid ill add some more...

not sure there was any tune done.

diag channel configs would be a great assistance as im a such a novice sponge.

again thanks for your help.

[w313zrd]

20250628-idle-up-100rpm-frombase.hpt25-07-04 12-45-45.hpl

found some better channels for diag.

had a much longer run(rough start, stall, drive for a long while, and then no issue,) the log above was taken after that and a restart, threw the idle air control code... ( will try to file share for the long log)
(https://drive.google.com/file/d/1Z4t...ew?usp=sharing)

gonna try to diag and make sure im not dealing with something mechanical prior to
looking into adjustments needed for (hot)start up and idle below 1000rpm(thanks for the input RRT).

green guy, not trying to blow up my dailydriver, cause the camaro aint got air right now...
will

[w313zrd]

The tune file looks to be completely stock aside from messing with idle and setting DOD to disable.
Did really dig too much but see if this helps get you at least started and idling so you can get the rest dialed in.
(This is in thought that your DOD Delete cam still uses VVT)

If you need more help and it's more of a diagnostics issue I can send you my channel configurations and we can look deeper into it.

20250622_post-idleup100-75-variiedrpm - RR.1.hpt

RRt, can you pass over a diag log so i can pull the proper cannels, or a list and i can get them added? also any pedal input request (my inputs) for the diag logs. thanks.