LTX and LSXPutting LT1's, LS1's, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects, including repairs, swap info, and performance upgrades.
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LT1. Had tunercat failure while programming, am i screwed?
Alright. I was trying to narrow down why the LT1 was not starting. Fuel Pump works, everything is wired up, just no go. I was thinking maybe something else in the pcm has to be shut off for my setup (LT1 with 700R4, no vats, no egr, no A/C at the moment, etc.) Haven't checked for spark yet.
Anyways, about the forth time ever on programming the pcm (2nd time for today), tunercat freezes up. I have the newest version of tunercat, my computer is reliable, i didn't bump/touch anything.
So, what's my best solution? Contact the local GM dealer to fix it? Contact PCMS4LESS? Or get a new pcm? Any info would be nice.
Found a little info on tunercat. I don't have the newer version. A new tuner 2.10 and $EE def file version BK came out with bug fixes. I didn't get these new versions yet...
I had this happen once. I tried to shutdown a load but was too late, it had already started loading the new tune. Turned the key and it would crank but nothing else. I ended up grabbing a buddy's PCM and plugging it in to make sure it was the PCM and nothing else, sure enough it fired right up. I disconnected his and plugged mine back in and it too started right up, I think it just needed a reset by disconnecting the power.
I tried reseting the pcm, still no read or write. So soldered the sockets for the flash chips onto the pcm that i got from the kit from madz28.com. Didn't get it to read/write until i cleaned my solder connections with iso-alcohol.
Also, found out why the car wasn't starting. Tracked down a wire for the ignition control module that was cut because of the LT1's former car's accident. After that was fixed, LT1 started right up.
