Operations

[mc3cars]

Hey all, I want to update on my progress. I'm working on a '04 Escalade EXT which is electrically meticulous in nature. I get bench flashing to work great, 39 second write with a topdon RLink J2534.
If I plug in an ECU with VATS enabled, we can't connect to the ECU in the vehicle with PCM Hammer, will display VIN truncated errors as something with BCM intercom, so another ECU swapping work the VATS disabled resolved that.
With my current calibration, the machine will start and idle, but when I plug my aftermarket VDI, another challenge arose. We were able to communicate with the ECU initially for some basic information. However, I requested it initialize TPMS, and the entire ECU went wonky and couldn't communicate with it via PCM Hammer anymore without the VIN truncated message. The software was able to do some comparison matching when I attempted to just write a calibration but failed to complete the process without encountering errors. Kernel failing to unlock.

I have an abundance of p59 ECU's so I flashed the updated calibration and now we are back in the business of failing forward.
Anyways this project has been greatly rewarding thus far. The wisdom it has been guiding me twords is invaluable, the engineering behind the entire machine is incredibly fascinating.
Sharing is caring. While you all have shared great advice I thought me sharing my progress, frustrations and accomplishments might assist others along the way. Godspeed

[NSFW]

It might be helpful to attach jlvaldez' VPW Analyzer to the bus when you try the TPMS initialization... Maybe one of the modules is flooding the bus with bunch of messages and preventing the other modules from doing their jobs. If so, then the next step might be to try the same thing on an Escalade that has TPMS working and see what messages are present in that one, but missing in yours. Or you might be able to just identify the sending module and disconnect it until you feel like digging deeper.

viewtopic.php?t=7718

[antus]

Yeah, PCM Hammer is designed to operate on a silenced bus. The silence command worked properly on the cars it was originally designed for but there are a lot of issues caused by other types of cars/trucks and aftermarket or faulty modules. Truncated means that some other data came in to pcmhammer and confused it. It sounds like you need to bench flash for that PCM.

[mc3cars]

Yes bench flashing has been what I've discovered best use for the software. I tried to get a log recording with the Logger tool. I hit record and stopped, however I don't have a file that was created for me to analyze

[Knackersjewels]

The P59 tahoes and escalades are notorious for the stereo interrupting data, it's a big deal to the point HPTuners recommend unplugging the radio fuse before flashing

[mc3cars]

The P59 tahoes and escalades are notorious for the stereo interrupting data, it's a big deal to the point HPTuners recommend unplugging the radio fuse before flashing

Brother, I definitely appreciate that tidbit. Currently I don't even have the radio plugged in. Troubleshooting the build, having oil pressure warnings. I pull the panAWD taxes, and I discovered this flipping passage got
blocked with RTV. I secured the shit out of the suction pipe when I put it together, so I guess I'm cleaning it up and putting it back together. I guess this time I test the operation of the motor before I get too confident in the build.