I'm not even sure if there is a commented disassembly available for LS1's yet?That's pretty interesting about the chips and the '0411 PCM. I sure am not about to pay per car to tune, no way no how! consequently I haven't done any OBD2 stuff in a LONG time. Working directly with the chip is a PITA,but it can be done. I had it down to under 20 minutes to pull a pcm, crack it open, R&R the chip[ close it back up, re-install in car and drive. We then burned a calibration and re-soldered the chip. This was for development, customers cars had their flash chip desoldered and the read in an eprom programmer. What I did was modified an '0411 PCM to use a ziiff socket in place of the soldered on flash chip. Years ago I was involved in LS1 tuning at work. Otherwise I believe you could use tunerpro if you write an xdf. If you know alot about how the HPT box works or what exactly those converter box's do please pm me! Also pm me if you know anything about any other DIY projects for open source tuning LS1s.or the old freeware!įlashing the PCM through the port to reprogram it is the biggest thing I think. I've got a friend who is quite good at software and interfaces, I'll work with him in the meantime on a possible software suite, but I might need some info regarding what the "black box" converters actually do. In this day and age I feel like open source is a big deal and why can't we apply it to this scenario. I'll spend $500 on the equipment/software suite if I really have to.but I'd love to find a way to build my own cable/converter box and create my own open source software if possible.maybe incorporate things from HPT and EFILive that people like. Does anyone know anything at all about finding the OLD freeware that was spoken about in this thread, or any new projects? I find it hard to believe that there is literally no freeware or DIY project on the internet regarding tuning LS1's PCMs for free. I'm used to the OBD1 world where you didn't necessarily need the serial/usb converter box in between the cables and there was free software like TunerproRT. With HPTuners and EFIlive and LS1Edit taking a vast majority of the marketshare when it comes to LS1 scanning and editing. It seems today you have to "pay to play" in the OBD2 world, I really hate to resurrect a dead and old thread but I'm actually wondering a few things about this.
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