'lil help with edit problem please ...long
'lil help with edit problem please ...long First off, I wanted to say hi since I'm a relatively new guy to this site. I have been reading a lot, but not posting much. I think this is a great site.
I have a 98 M6 Z28.
A couple friends (with previous ls1 edit experience) and I reprogrammed my PCM tonite. Things didn't go very well. I'm hoping for a little assistance determining what went wrong and if I toasted my PCM.
We read, then edited my program. We only changed parameters for CAGS, fans and speed limiter since my car is basically stock. (free ram air and a cat back)
We did a read, then flashed the PCM. After the programming, I tried to start the car and the battery was weak. It cranked over a couple times and didn't start, then failed to crank any more.
I had a weak battery and didn't realize it before hand.
We replaced the battery with a new one and it wouldn't start. We reverted back to the original program, same thing.
We plugged in an autotap and got a code of P0601 PCM/VCM Memory. We figured this was not a good sign <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> I suspect I'll be buying a PCM but figured I would ask before doing so.
Any words of wisdom would be appreciated.
Thanks
I have a 98 M6 Z28.
A couple friends (with previous ls1 edit experience) and I reprogrammed my PCM tonite. Things didn't go very well. I'm hoping for a little assistance determining what went wrong and if I toasted my PCM.
We read, then edited my program. We only changed parameters for CAGS, fans and speed limiter since my car is basically stock. (free ram air and a cat back)
We did a read, then flashed the PCM. After the programming, I tried to start the car and the battery was weak. It cranked over a couple times and didn't start, then failed to crank any more.
I had a weak battery and didn't realize it before hand.
We replaced the battery with a new one and it wouldn't start. We reverted back to the original program, same thing.
We plugged in an autotap and got a code of P0601 PCM/VCM Memory. We figured this was not a good sign <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> I suspect I'll be buying a PCM but figured I would ask before doing so.
Any words of wisdom would be appreciated.
Thanks
Staging Lane
Joined: Nov 2001
Posts: 77
Likes: 0
From: Phoenix Arizona
Re: 'lil help with edit problem please ...long That sucks man! It sounds like the data in your PCM is corrupted due to low power during the flash. Ken can probably help you out, but you will need to send your PCM to him to get it fixed. I hope everything works out ok.
TECH Regular
Joined: Nov 2001
Posts: 499
Likes: 0
From: Clarkston
Re: 'lil help with edit problem please ...long This a problem we need to pay more attention to! (I know of a couple of guys with dead batteries during HPP loads, same thing!)
My stock battery is approaching 3 years old. I was looking at a light weight replacement but I think I'm going to go the other way and get higher power unit. I don't want to have to worry about problems doing loads at the track, running fans a little in the staging lanes, etc.
My stock battery is approaching 3 years old. I was looking at a light weight replacement but I think I'm going to go the other way and get higher power unit. I don't want to have to worry about problems doing loads at the track, running fans a little in the staging lanes, etc.
Teching In
Joined: Dec 2001
Posts: 33
Likes: 0
From: MA
Re: 'lil help with edit problem please ...long If you are in a garage and doing this, why not use a battery tender to make sure your battery doesn't die. It wouldn't hurt and save you from purchasing a new PCM. By the way, how much is it for a PCM for a C5.
TECH Apprentice
Joined: Jan 2002
Posts: 384
Likes: 0
From: Murphy, TX
Re: 'lil help with edit problem please ...long Good suggestion. Everything on hard lines <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> The thing I am most worried about now is the OS crashing.
I think I've seen used C5 PCMs going for $200-250. Dont know about new ones. The 97-98 may be a little more since there are fewer of them.
<small>[ April 02, 2002, 05:37 PM: Message edited by: ToplessTexan ]</small>
I think I've seen used C5 PCMs going for $200-250. Dont know about new ones. The 97-98 may be a little more since there are fewer of them.
<small>[ April 02, 2002, 05:37 PM: Message edited by: ToplessTexan ]</small>
Re: 'lil help with edit problem please ...long </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by C5 YA:
<strong>If you are in a garage and doing this, why not use a battery tender to make sure your battery doesn't die. It wouldn't hurt and save you from purchasing a new PCM. By the way, how much is it for a PCM for a C5.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">One of the first warnings in the instructions...
"do not leave a charger attached while programming, and do not attempt any other work around the battery"
<small>[ April 02, 2002, 07:09 PM: Message edited by: Kevyn ]</small>
<strong>If you are in a garage and doing this, why not use a battery tender to make sure your battery doesn't die. It wouldn't hurt and save you from purchasing a new PCM. By the way, how much is it for a PCM for a C5.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">One of the first warnings in the instructions...
"do not leave a charger attached while programming, and do not attempt any other work around the battery"
<small>[ April 02, 2002, 07:09 PM: Message edited by: Kevyn ]</small>
Teching In
Joined: Apr 2002
Posts: 15
Likes: 0
From: michigan
Re: 'lil help with edit problem please ...long install a battery charger on low or medium if volts drop below 12 it will lock computor up and you need new one or send out for repair.
you can try this some times it works i have done it at work a few times, also i have never locked up a computor with the charger on the battery.
try disonnecting positive cable from battery and short the cable across the negative cable at the battery some times this unlocks the computor.
you can try this some times it works i have done it at work a few times, also i have never locked up a computor with the charger on the battery.
try disonnecting positive cable from battery and short the cable across the negative cable at the battery some times this unlocks the computor.
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Re: 'lil help with edit problem please ...long i just hook the charger to mine and leave it on low... i cant afford a battery dieing on me while prgraming.. if its on low it cant hurt anything...
i know it says not to leave one connected, but we have been doing this for years when working on equipment with no probs yet
i know it says not to leave one connected, but we have been doing this for years when working on equipment with no probs yet