What causes upload "Crashes"???
Thread Starter
Pro
Joined: Jun 2001
Posts: 708
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From: Florida
What causes upload "Crashes"???
Was just uploading and the fans came on (as they should), but never turned-off, and the program never completed uploading. This is the second time this has happened to me.
I'm using TunerCat ($EE program for '95 LT1) in Win98 on a laptop that is ONLY used for programming/datalogging (no internet, so should be Virus-Free).
Is there something I can do BEFORE trying to upload so I know there is proper communication? Damn, this is getting expensive!!!
TJWong, are you still rebuilding? If so, please PM me w/ your address.
Thanks!
I'm using TunerCat ($EE program for '95 LT1) in Win98 on a laptop that is ONLY used for programming/datalogging (no internet, so should be Virus-Free).
Is there something I can do BEFORE trying to upload so I know there is proper communication? Damn, this is getting expensive!!!
TJWong, are you still rebuilding? If so, please PM me w/ your address.
Thanks!
Thread Starter
Pro
Joined: Jun 2001
Posts: 708
Likes: 0
From: Florida
Yeah, the ignition is in the "On" position, and I always use house power when uploading (just don't trust batteries)...
Is there ANY possibility of "Crashing" when READING the PCM? If not, should I try READING the PCM first, just to see if it's communicating, then PROGRAM it?
THanks!
Is there ANY possibility of "Crashing" when READING the PCM? If not, should I try READING the PCM first, just to see if it's communicating, then PROGRAM it?
THanks!
Thread Starter
Pro
Joined: Jun 2001
Posts: 708
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From: Florida
Never disassembled the cable, so can't say for sure (It's the cable everyone seems to use...from "Andrew", I believe). I never had a problem READING, just when Programming... if that matters???
I guess I'll do what I can to make sure there's good communication first.
I guess I'll do what I can to make sure there's good communication first.
Melting Slicks
Joined: Apr 2003
Posts: 2,150
Likes: 6
From: NS
I was in your shoes before. TunerCAT took a dump a little more than 1/2 way through. I ended up removing the flash chips from the PCM and soldering sockets on the board. Then I programmed two new flash chips on my desktop EPROM programmer and plugged them in. After that I struggled with FEDS for a little but eventually it figured itself out and was fine.
Also, never never use a USB to Serial adapter. What kind of cable do you use?
Thread Starter
Pro
Joined: Jun 2001
Posts: 708
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From: Florida
Yeah, think I'll be doing a few READS first, THEN I'll do programming.
Thanks!
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
I can say that I have had one PCM crash on me during a reflash in the car, it even told me that the programming was complete but the PCM had died for some reason in the process. I even went through the process of desoldering and soldering in sockets, but there was something else wrong as the PCM was dead to the world. In this case the only option was to go with a reman PCM from AC Delco.
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Thread Starter
Pro
Joined: Jun 2001
Posts: 708
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From: Florida
Thanks for the input
Pro
Joined: Nov 2005
Posts: 536
Likes: 0
From: Bardstown Kentucky
I just killed my ECM tonight. I have a 95 pcm in my 96 so that I can tune it myself and I have already killed it. The fans stay on and I have a really fast blinking SES light. I just got the ECM from PCM for less too . This really sucks. I am using TunerCat Win flash, TunerPro RT to modify the bin. and datalog. For hardware I have a Moates Autoprom and a Moates cable. The Autoprom uses a USB to serial software to create a com port. It seems like someone would know exactly what to do to keep this from happening.
I took the ECM apart and saw the FLASH chips, where are you guys getting those? What kind of programmer are you using to flash them outside the ecm?
. This really sucks. I am using TunerCat Win flash, TunerPro RT to modify the bin. and datalog. For hardware I have a Moates Autoprom and a Moates cable. The Autoprom uses a USB to serial software to create a com port. It seems like someone would know exactly what to do to keep this from happening.I took the ECM apart and saw the FLASH chips, where are you guys getting those? What kind of programmer are you using to flash them outside the ecm?
Melting Slicks
Joined: Jul 2006
Posts: 3,356
Likes: 1
From: Chesapeake Va
Seems the OBD1 and 2 computers for the LTx motors are kinda finicky. I have had issues on and off, with both versions. With no consistancy what so ever. I have had PCMs take a dump both reading and writing (flashing)
The good part is when they have a failure during a read, they almost always recover. Disconnect the battery for a 1/2 hour or so, and they come back.
Had one take a dump at the racetrack, and when we got it home an hour later, it started right up and we backed it out of the trailer.
Had a Grand Sport take a dump in the middle of a read, in Hockenheim Germany, and the guy was from France. I just new I was gonna get this guy stuck several hours from his home. Luckily it came back to life also.
The good part is when they have a failure during a read, they almost always recover. Disconnect the battery for a 1/2 hour or so, and they come back.
Had one take a dump at the racetrack, and when we got it home an hour later, it started right up and we backed it out of the trailer.
Had a Grand Sport take a dump in the middle of a read, in Hockenheim Germany, and the guy was from France. I just new I was gonna get this guy stuck several hours from his home. Luckily it came back to life also.
Melting Slicks
Joined: Apr 2003
Posts: 2,150
Likes: 6
From: NS
I just killed my ECM tonight. I have a 95 pcm in my 96 so that I can tune it myself and I have already killed it. The fans stay on and I have a really fast blinking SES light. I just got the ECM from PCM for less too . This really sucks. I am using TunerCat Win flash, TunerPro RT to modify the bin. and datalog. For hardware I have a Moates Autoprom and a Moates cable. The Autoprom uses a USB to serial software to create a com port. It seems like someone would know exactly what to do to keep this from happening.
I took the ECM apart and saw the FLASH chips, where are you guys getting those? What kind of programmer are you using to flash them outside the ecm?
. This really sucks. I am using TunerCat Win flash, TunerPro RT to modify the bin. and datalog. For hardware I have a Moates Autoprom and a Moates cable. The Autoprom uses a USB to serial software to create a com port. It seems like someone would know exactly what to do to keep this from happening.I took the ECM apart and saw the FLASH chips, where are you guys getting those? What kind of programmer are you using to flash them outside the ecm?
Ion Soltan helped me out with new chips and sockets. ion@soltan.net
Pro
Joined: Nov 2005
Posts: 536
Likes: 0
From: Bardstown Kentucky
Been there, done that. You're gonna need to get those flash chips off the boards and solder sockets in their place. I used my EPROM Programmer (Pocket Programmer 2) to program my flash chips before plugging them into the sockets. The tricky thing is you can't just dump the BIN file into the chips. You need to split it into two files, and translate them because the address lines to the chips inside the PCM are crossed. I created a small program to do this for me, once someone told me how the address lines are wired in the PCM. Anyway, it worked for me and brought my '95 back to life. You can have the program if you need it.
Ion Soltan helped me out with new chips and sockets. ion@soltan.net
Ion Soltan helped me out with new chips and sockets. ion@soltan.net
That would be great, Thanks. I sent you a PM.
I have been talking to Ion, today via e-mail.
Melting Slicks
Joined: Apr 2003
Posts: 2,150
Likes: 6
From: NS
http://www3.ns.sympatico.ca/krichar/...ageExtract.zip
If you are buying new Flash chips from Ion and don't have an EPROM programmer, he may program them for you if you send him the two image files you'll get from this program.
I hope it works for you!
Intermediate
Joined: Aug 2004
Posts: 40
Likes: 0
From: Garage City WA
The corrected ones are on Moates's file manager.
Instructor
Joined: Mar 2005
Posts: 104
Likes: 0
I believe the most common cause of PCM 'crashes' is vehicle battery voltage. I always verify that it is 12.6 or above (igntition off) before I start and no lower than 12.3 with ignition on. Be sure to turn off all accessories and set e-brake to kill the DRLs (if so equipped). I have also always shorelined the laptop when flashing because I don't trust batteries.
Pro
Joined: Nov 2005
Posts: 536
Likes: 0
From: Bardstown Kentucky
I believe the most common cause of PCM 'crashes' is vehicle battery voltage. I always verify that it is 12.6 or above (igntition off) before I start and no lower than 12.3 with ignition on. Be sure to turn off all accessories and set e-brake to kill the DRLs (if so equipped). I have also always shorelined the laptop when flashing because I don't trust batteries.
Pro
Joined: Nov 2005
Posts: 536
Likes: 0
From: Bardstown Kentucky
I downloaded the latest version of the .xdf files from Moates. It looks like the EE.xdf is the same as the one I already have. What car is the EEB.xdf for?
Intermediate
Joined: Aug 2004
Posts: 40
Likes: 0
From: Garage City WA
The checksum end addresses were edited. (Compare the checksums from the XDF you had before to the XDF you recently re-downloaded).
