Toasted PCM
Toasted PCM Posting here just in case someone here does not read the ls1edit posts.
Trying to upload a new tune today, it got 35% done and just sat. No
progress, no nothing.
Even got a new laptop to do the tunes with because we suspected the laptop
had a problem with communications with the car. Looks like it was the car
not the pc.
SO, how do I get this one fixed? Can the dealership flash the existing one
or do I have to buy a new one?
AND, does the dealership have to swap out the odbii connector with a new on
since this one looks to have some kind of problem? How do I prove that to
them?
ls1edit will not connect to the pcm, it get to
downloading vin and I hear the pcm click, and it does that over and over.
Shows it reconnecting with the PCM.
EFILive will not even connect now, says its not connected to a GM or obd-ii
vehicle
Trying to upload a new tune today, it got 35% done and just sat. No
progress, no nothing.
Even got a new laptop to do the tunes with because we suspected the laptop
had a problem with communications with the car. Looks like it was the car
not the pc.
SO, how do I get this one fixed? Can the dealership flash the existing one
or do I have to buy a new one?
AND, does the dealership have to swap out the odbii connector with a new on
since this one looks to have some kind of problem? How do I prove that to
them?
ls1edit will not connect to the pcm, it get to
downloading vin and I hear the pcm click, and it does that over and over.
Shows it reconnecting with the PCM.
EFILive will not even connect now, says its not connected to a GM or obd-ii
vehicle
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From: sojourning....looking for my city whose builder and maker is God.
Re: Toasted PCM That happened to me a couple of weeks ago. I got in touch with Ken from Carputing and he said as long as I didn't disconnect the battery, I could try to reflash the computer. He said it might take a while for it to start, but be patience it might work. Trouble with mine was, I had already disconnected my battery hoping that it would reset and be all right, but it didn’t work.
So I mailed my pcm to Ken and they fixed it for me. It cost $50.00 plus shipping. I sent it next day air and they sent it back to me that way. Ken and Dave are great people to work with, awesome customer service.
So I mailed my pcm to Ken and they fixed it for me. It cost $50.00 plus shipping. I sent it next day air and they sent it back to me that way. Ken and Dave are great people to work with, awesome customer service.
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From: sojourning....looking for my city whose builder and maker is God.
Re: Toasted PCM One more thing, I am curious, by chance, had you just made a run with EFILive right before you tried to flash your pcm with Edit?
Re: Toasted PCM Nope, I was just emailing back and forth with the guys from carputing about efilive because I kept getting buffer overruns. We thought it was the laptop or efilive leaving the com port open so LunaticTA gave me his old one and I got everything setup just to make sure it wasn't the laptop.
I ran EFILive last night and it lost comm a few times while driving home but made sure not to go near EFI today and was just going out to flash with a new tune to stop the mid-range from pinging. I didn't even have to do it, it was running fine just wanted to tweak it a little more.
Hopefully Ken reads teh post and gives me the thumbs up to send out.
I ran EFILive last night and it lost comm a few times while driving home but made sure not to go near EFI today and was just going out to flash with a new tune to stop the mid-range from pinging. I didn't even have to do it, it was running fine just wanted to tweak it a little more.
Hopefully Ken reads teh post and gives me the thumbs up to send out.
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From: sojourning....looking for my city whose builder and maker is God.
Re: Toasted PCM I am not sure what all this has to do with EFILive if anything at all. Several months ago I had just made a EFIlive run then tried to flash my pcm with a few fuel trim changes. It would not connect to LS1prog at all. I didn’t hurt my pcm that time because it never connected to it. I was able to reset the pcm by removing the pcm fuses in the engine bay for a few minuets and then everything was ok again. I was then able to flash my pcm. This last time I again had just made a EFIlive run prior to flash my pcm. It made it to about 70% and then quit responding just like what you had described with yours.
BTW we have 2 cars and I have flashed both vehicles quite a few times after making EFIlive runs with no problems. 2 different laptop were used these two times I had trouble. Both times the laptops were starting to run a little slow, needing to be cleaned up some and defragged. My gut feeling is when I have overloaded my laptop and then make a EFILive run it does something to the pcm and doesn’t disconnect right.?.? Then it is a disaster waiting to happen if I then try to flash the pcm with it. I at least believe that I should reboot the laptop after each time it is connected to the car.
BTW we have 2 cars and I have flashed both vehicles quite a few times after making EFIlive runs with no problems. 2 different laptop were used these two times I had trouble. Both times the laptops were starting to run a little slow, needing to be cleaned up some and defragged. My gut feeling is when I have overloaded my laptop and then make a EFILive run it does something to the pcm and doesn’t disconnect right.?.? Then it is a disaster waiting to happen if I then try to flash the pcm with it. I at least believe that I should reboot the laptop after each time it is connected to the car.
Re: Toasted PCM I know some of the times over the last few months I did run efilive first then tried to flash, since it would not connect, I would reboot thinking it was the laptops comm port going bad or modem interfering.
this time, the laptop has 2 programs installed, efilive and ls1edit, thats all. A complete new install of winme.
and today, I did not go near efilive.
this time, the laptop has 2 programs installed, efilive and ls1edit, thats all. A complete new install of winme.
and today, I did not go near efilive.
Re: Toasted PCM Just thought I would share some info:
Looks like I am shipping it to Ken at carputing monday.
The info: If you want to take out the PCM easier without chewing up your hands, remove the 2 push pins that hold the rain drain inplace. Lift the passenger side of the rain drain out of the way, and the pcm comes out a little easier.
Looks like I am shipping it to Ken at carputing monday.
The info: If you want to take out the PCM easier without chewing up your hands, remove the 2 push pins that hold the rain drain inplace. Lift the passenger side of the rain drain out of the way, and the pcm comes out a little easier.
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From: Lake Zurich, IL
Re: Toasted PCM FWIW, I killed my PCM last year doing a tune, I had a GM Dealership reflash it and it works fine and LS1edit still works with it... I also got a spare PCM right away ... I had to have the car at the dealership for them to reflash so if I ever mess up my PCM i just put the spare in and pay the dealership the 50 bux or so to reflash
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From: sojourning....looking for my city whose builder and maker is God.
Re: Toasted PCM I bought one from Carputing for $200.00. That's the one I use. I was able to put the stock one back in while Carputing was fixing the one I toasted.
Re: Toasted PCM Yah, carputing just got back to me for the same price.
I am going to do the same and have a spare one just in case something like this happens again.
I am going to do the same and have a spare one just in case something like this happens again.
