2014 Camaro SS LML Build Thread
- Thread starter Jakezed22
- Start date
Nice work.
Now ya need to hook up efilive and start logging some pids while ya play with the brake and P/N wires. All those important position values can be logged, along with VSS pulses and cruise related parameters live, which will then tell ya what mode the ECM is in.
I run the LMM's in stand alone with nothing connected to the P/N circuitry and not notice any torque limiting. Nor with a T42 wired up, until I hit the speed limiter conflict..
However, there is some gear related torque tables that might be coming into play, depending on what gear the TCM is telling the ECM it believes it's currently in. That would make sense with N pin overriding the CANbus data.
Be interesting to see what it thinks it's doing at 40mph or so. Need more data...
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Now ya need to hook up efilive and start logging some pids while ya play with the brake and P/N wires. All those important position values can be logged, along with VSS pulses and cruise related parameters live, which will then tell ya what mode the ECM is in.
I run the LMM's in stand alone with nothing connected to the P/N circuitry and not notice any torque limiting. Nor with a T42 wired up, until I hit the speed limiter conflict..
However, there is some gear related torque tables that might be coming into play, depending on what gear the TCM is telling the ECM it believes it's currently in. That would make sense with N pin overriding the CANbus data.
Be interesting to see what it thinks it's doing at 40mph or so. Need more data...
Sent from my SM-S901U using Tapatalk
Absolutely, I had efi live logging some cruise data the last run I made. I’ll definitely have to do more.Nice work.
Now ya need to hook up efilive and start logging some pids while ya play with the brake and P/N wires. All those important position values can be logged, along with VSS pulses and cruise related parameters live, which will then tell ya what mode the ECM is in.
I run the LMM's in stand alone with nothing connected to the P/N circuitry and not notice any torque limiting. Nor with a T42 wired up, until I hit the speed limiter conflict..
However, there is some gear related torque tables that might be coming into play, depending on what gear the TCM is telling the ECM it believes it's currently in. That would make sense with N pin overriding the CANbus data.
Be interesting to see what it thinks it's doing at 40mph or so. Need more data...
Sent from my SM-S901U using Tapatalk
For the VSS pulses, I don’t see that parameter in efi, I’ll have to check hpt yet but if it’s not there either do you think it could be changed in the bin? If not I guess I could just change tire size to compensate, it’s off by a factor of 1.78 according to the dash.
Just search SPEED in efi and will find multiples under ECM & TCM.
In each tune file, you'll need to end up with the same pule per mile values however you calculate it. Normally not an issue, but you have that odd tooth count reluctor, and 40 is your current/default settings in both units. So likely both will need adjusted.
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Gear was trapped in garage for a week while they poured cement out front.
Great news! Installed new vss sensor and adjusted tire size in ecm and TCM to account for the 17 tooth reluctor in tr6060. Got it within 1kph on the first go lol. Cruise control is also working perfectly. Had to have neutral safety switch to ecm not grounded, so I will hook this up to a binary switch on the clutch pedal so it actually functions as it should, and also unplugged my clutch pedal sensor(which is basically ecm brake pedal sensor) and it is just fine like that so far.
One thing to note is I’ll have some tuning to do, at lower rpm it has trouble building boost and fueling. Seems like a limiter maybe under 1800 rpm but not sure. I will need to further log and find out. Perhaps the t42 is limiting fuel? I actually haven’t logged to see what it even thinks is going on while driving.
I bought a pair of mk4 tdi jettas so they have be occupying my time recently.
Great news! Installed new vss sensor and adjusted tire size in ecm and TCM to account for the 17 tooth reluctor in tr6060. Got it within 1kph on the first go lol. Cruise control is also working perfectly. Had to have neutral safety switch to ecm not grounded, so I will hook this up to a binary switch on the clutch pedal so it actually functions as it should, and also unplugged my clutch pedal sensor(which is basically ecm brake pedal sensor) and it is just fine like that so far.
One thing to note is I’ll have some tuning to do, at lower rpm it has trouble building boost and fueling. Seems like a limiter maybe under 1800 rpm but not sure. I will need to further log and find out. Perhaps the t42 is limiting fuel? I actually haven’t logged to see what it even thinks is going on while driving.
I bought a pair of mk4 tdi jettas so they have be occupying my time recently.
Good to hear.
In the LBZ/LMM ya have torque tables per gear. Next step would be log some data and verify which gear the ECM believes it's in based off what the T42 is telling it, and max out all those torque limiting tables.
I've personally only experienced a speed limiting issue running t42 against the LMM. And all my safety/limit tables are maxed. So I'd guess your being held back by some ecm setting.
In the LBZ/LMM ya have torque tables per gear. Next step would be log some data and verify which gear the ECM believes it's in based off what the T42 is telling it, and max out all those torque limiting tables.
I've personally only experienced a speed limiting issue running t42 against the LMM. And all my safety/limit tables are maxed. So I'd guess your being held back by some ecm setting.
Took the car out tonight to do some logging and found some interesting things. The TCM still believes it is shifting through the gears, if you pull a high gear a steady accelerate it will defuel when it thinks its shifting. Ill have to try maxing all the shift tables so it never leaves first, and zero out all defuel on shifts. As far as my torque limiting when doing a burnout; i was able to break them loose and shred tires for as long as i want, i just needed to build a little boost first then it lite up like christmas. SO im assuming for that issue i just have some torque, fuel, or boost tables that need spicing up on the bottom end. Ill revise the files and report back, hopefully ill have a good video to link soon.
Working on cleaning up the tune. Still doggy down low but I’m slowly bringing boost on earlier and it seems to be helping. Gonna close veins sooner to help spool on my next revision.
If you listen closely you can hear the TCM pull fuel for a shift it thinks it’s making. So also working on that. If I totally max out all the shift tables I loose cruise control. So need to just get ride of the de fuel for shifts.
Have you scaled it yet? To see how much the weight changed?
I spent some time and re wrote the tune for the car, previously i had been learning new things for the lml every week and i think that lead to the overall tune kinda being a mess.
So i started fresh, went through the timing calculator, referenced some other tunes to make sure i wasnt way out to lunch on timing. Then added fuel and air. I went from sloppy black smoke to a nice clean pull. And to my suprise it is not cutting out like before which i thought was the tcm pulling fuel.
But i have settled on something, this winter im gonna roll back the Ecm to a LMM. I have found a low km Lbz with good injectors. I'm tired of once in a while the lml immobilizer causes a few start/stops. And now with the tr6060 in place and working good ill be able ditch the tcm completely and setup the E35 as a manual transmission OS.
Ill be looking for someone to modify the .bin if that's something you can do please reach out.
So i started fresh, went through the timing calculator, referenced some other tunes to make sure i wasnt way out to lunch on timing. Then added fuel and air. I went from sloppy black smoke to a nice clean pull. And to my suprise it is not cutting out like before which i thought was the tcm pulling fuel.
But i have settled on something, this winter im gonna roll back the Ecm to a LMM. I have found a low km Lbz with good injectors. I'm tired of once in a while the lml immobilizer causes a few start/stops. And now with the tr6060 in place and working good ill be able ditch the tcm completely and setup the E35 as a manual transmission OS.
Ill be looking for someone to modify the .bin if that's something you can do please reach out.
What kind of .bin work do you need exactly? I might be able to help.
Will need an Lmm file modified to run as a manual trans OS. A guy named Dillon had one done before. He said everything is in the Lmm bin just needs to be changed to be the same as an lbz manual. Then he said wire it like a lbz manual and it all works. He had converted a Lmm to zf6 and was able to retain speedo and clutch safety.
Ok, I would have to research what's involved. Might be beyond my skill level.
Well might aswell document trying to learn .bin editing. Here I’ve got two bin files. One manual and one auto lbz, they both went in efi live and all differences beside segments where matched. Looks like little over 1600 byte differences. I guess now I need to try define what exactly each is and then modify the auto file to match. But of course in a LMM. Next I’ll compare a LMM bin against the auto LBZ then hopefully the lines that are different between these two, the same lines in a LMM should match the auto LBZ ?? Feel free to tell me if I’m crazy.
This stuff is pretty cool tho. I’ve got winols on the desktop at home so I’ll use it if need be. This here is tuner pro.