Spark Torque Management? Can't get rid of it
 

Trying to touch up a tune on my daily driver 2008 Silverado. 5.3, with a muffler swap, lol.

DoD Disabled...

No matter what RPM, what MPH, what gear, what-EVER...I get almost constant TORQUE MANAGEMENT SPARK RETARD.

On the LOG, it says, "SPARK TORQUE MANAGEMENT TYPE.........TRANS, when it is removing anywhere from 3* to near 20* of timing. I THOUGHT I had every single ENGINE & TRANSMISSION spark related torque management parameter turned OFF, but evidently not.

I cannot, for the life of me, figure out how to ELIMINATE THIS...It should not be subtracting timing idling or drifting at 5mph...Truck has tank of 93 octane unleaded, does NOT burn oil, does not have any blowby, does not TAP, does not have an exhaust pipe rattling, and does not get any actual KNOCK RETARD, just this Torque Management BS, which sucks the life out of this thing, power-wise...
I attached latest log and reflash below.

Any help would be greatly appreciated!!

Rel3rd, try this tune.

Russ Kemp

Well, I feared this day.
MPVI 1 Pro is what I have.

I had to update software to be able to open that file...Reflashed that tune to the truck. Then tried to "Write Config" to the interface so I could log on drive to work tomorrow morning
Now it's not seeing my interface. Tried resyncing interface, restarting laptop, reconnecting all wires, online, offline, and doing a headstand...nothing...

I'll have to see if I can figure this out tomorrow... :(

https://cimg2.ibsrv.net/gimg/ls1tech...7ae0462a61.jpg

I also have the MPVI 1. With the latest beta, there is a firmware update.

Russ Kemp

I didnt download the BETA version. I will try again tomorrow. It did flash your tune, and did a license backup, as well as the info page that lists all of the licenses and other specs. Hopefully it is just a glitch and not a bricked interface.

I'll post back as soon as I know something more definitive. Thanks

Just waiting for my first job to come in, so been tinkering around with the HPTuners.

THIS MORNING...
The laptop has no problem whatsoever connecting to the interface ONLY, via the USB port, and original HPTuner supplied cable. Also no issue connecting laptop to interface only, using an aftermarket, much longer USB cable. It is able to "GET INFO" from checking the interface (although it's empty of logs, it is connecting and checking), so maybe it was just a fluke?

It's pouring down rain, with remnants of the latest hurricane, so if I catch a spot where it's light rain, I'm going out to see if I can do the WRITE CONFIG and actually log.

Russ K,
Truck actually felt great on drive into work this morning, with your "Tune 5".
I did a COMPARE FILE from my tune above, to yours, and only see what looks like all of the engine related torque management returned back to stock or near stock. Which puzzles me. I guess I am not comprehending why that would help?
I had pretty much everything maxed out, in hopes of it simply not ever seeing the need to limit spark, at least until I got done playing with the MAF and CRUISE TIMING.

Hopefully, I can get an actual log later and see what's happening.

Well, I guess I am one of the lucky ones.
Literally did not do anything differently than last night.
Same laptop (although fully charged, so no fear of it dying)
Same OBD cable
Same interface
Same everything...
Connected to truck, did a Write Config, quick test log, no problem...

WEIRD stuff...

NOW, I can try logging after work, and see if the Russ K adjustments helped.

That's why I don't like to run beta versions.. everytime I tried I had issues.

I didn't look since I'm at work, but assume you have all the tq mgmt % tables zero'd out. Did you also raise the spark - minimum tq mgmt table? Believe stock its set to -20* I usually bump it up to 6-10* depending. Even with tqmgmt off I've seen it pull big timing trying to shift.

Same here. I am not using the BETA version either. But, I guess I am now stuck with the current 4.8.7 version. I could not open Russ K's file to even look at it last night without updating, which is bullshit.

I've had my HPTuners since it was the serial version 1.xx.

I "HAD" the 4.4.4 version, which a lot of people bitch about, but personally I never had a problem with it. Last BETA version I tried, which was about the time of 4.4.4 release, about 75% of the time, I could NOT flash on High Speed, so a between runs reflash took 2-3 minutes, or more, instead of 22 seconds with the "normal" version...Of course, that issue was always blamed on a "problem with the car/wiring", yet problem magically disappeared when the BETA was deleted off my laptop.

My thoughts about going to the Holley Terminator X Max bandwagon, on my Trans Am, are gaining strength.

The Spark Torque Management was indeed ramped up quickly to -20* when I first got this truck, and I had it at +5* or 10*, but now it's at +20*, while I am trying to narrow down WTF is going on, lol.

https://cimg4.ibsrv.net/gimg/ls1tech...d66101b353.jpg

Well, new tune isn't happy at all either...

Tons of TORQUE MANAGEMENT RETARD still...Can't figure out WHY??

Can I just make it an artificially HIGH number, like 35*, so it should, hopefully, at least maintain the actual commanded timing?

I know it's a bit lean, but I literally drove it home like a little old lady


https://cimg2.ibsrv.net/gimg/ls1tech...bd10be93cc.jpg

I tried the 100% factory stock tune, for the drive into work...just to see what would happen.
That has DoD Enabled, and Flex Fuel Disabled
Obviously didn't help, and even shows AC Torque Spark reduction with it like that.

Just for the heck of it, I am going to set the Torque Management Minimum Spark to 25*, which "SHOULD" still allow it to retard for any other reason, but should keep it at 25* minimum, whenever this stupid Torque Management Retard kicks in...

Attached the log from this morning....

Try this tune. Any DTC's?

Russ Kemp

No sir. None.
Will try this one, and log it on way home in 2 hours.

Thanks for the help.

log base timing also. and maybe the torque converter perimeters? going into lock may throw abunch of torque management

something is fucky, but im not sure what lol.
youre histo is tagged spark retard but the perimeter youre logging is spark advance. looking at a few random spots in the log the only time the spark advance matches the spark table is when the additional advance comes from the trans spark advance

I'll try logging base spark...

The latest log started at -35.7* retard at about 10 feet out of my parking spot, BUT...
The Torque Management Spark retard never came back...which is the 1st time it hasn't...

1st pic is 12 seconds into the log, the 2nd pic is data from after driving 12 Minutes...

Attached latest log too.

https://cimg4.ibsrv.net/gimg/ls1tech...215cff6147.png

AFTER DRIVE:

https://cimg5.ibsrv.net/gimg/ls1tech...5e194fab1a.jpg

For starters torque management with a 4L60 is your friend so don't zero it out, however fix your abuse mode tables and your traction control tables and it will probably not randomly pull timing anymore.

Oh, I agree. I zeroed out the TM, trying to isolate the issue, and help to figure out WTH is happening...so far without much luck. I've modified both of those tables to no avail. Guessing I am not going about it correctly, because I'm sure not grasping the reason at all.
If you can shed any light on exactly what is in need of fixing, please give me a nudge in that direction

Anyone else? Russ K's tune above is the best it's been, although I am still baffled why it was, or would, have torque management timing retard at idle, or simply pulling out of a parking spot??

Try this and report back.

Today will be a great test day. I have to go grab my trailer, so I can haul my car home.

I'll log BEFORE it's a loaded trailer though.
Will post back ASAP.

Thanks!