If you use a scantool, does it pull a VIN or anything like that?jamesried wrote: Yeah this is the very first ls1 pcm used in 97-98 vehicles and the dbw 24x coil near plug 7.4 big blocks in big trucks. Similar but very different animal and very hot garbage temperamental.
Trying to find the EEPROM in a 98 LS1 PCM
Re: Trying to find the EEPROM in a 98 LS1 PCM
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Site:https://www.envyouscustoms.com
Mob:+61406 140 726
Re: Trying to find the EEPROM in a 98 LS1 PCM
Yes still pulls VIN, serial, etc. Not sure what part exactly gets corrupted, but it's not a full wipe or corruption. When you get the P0601 code on these the fuel pump won't prime and they act funny.Tazzi wrote:If you use a scantool, does it pull a VIN or anything like that?jamesried wrote: Yeah this is the very first ls1 pcm used in 97-98 vehicles and the dbw 24x coil near plug 7.4 big blocks in big trucks. Similar but very different animal and very hot garbage temperamental.
Re: Trying to find the EEPROM in a 98 LS1 PCM
Maybe there is a slave chip.. and that has the information???jamesried wrote:Yes still pulls VIN, serial, etc. Not sure what part exactly gets corrupted, but it's not a full wipe or corruption. When you get the P0601 code on these the fuel pump won't prime and they act funny.
Your Local Aussie Reverse Engineer
Contact for Software/Hardware development and Reverse Engineering
Site:https://www.envyouscustoms.com
Mob:+61406 140 726
Contact for Software/Hardware development and Reverse Engineering
Site:https://www.envyouscustoms.com
Mob:+61406 140 726
Re: Trying to find the EEPROM in a 98 LS1 PCM
Tazzi wrote:Maybe there is a slave chip.. and that has the information???jamesried wrote:Yes still pulls VIN, serial, etc. Not sure what part exactly gets corrupted, but it's not a full wipe or corruption. When you get the P0601 code on these the fuel pump won't prime and they act funny.
That is my understanding or something like it. Nothing in the pcm otherwise screams "hey i'm a flash chip" I even opened up the middle and there's nothing inside (it's a weird 2 PCB deal with the ribbon cable between it)
Re: Trying to find the EEPROM in a 98 LS1 PCM
Here's another reply from the guy that supposedly can fix:
https://ls1tech.com/forums/pcm-diagnost ... -what.html
"Vins are in the 98 pcms, Just not in the standard Bin file. They are on an eeprom."
https://ls1tech.com/forums/pcm-diagnost ... -what.html
"Vins are in the 98 pcms, Just not in the standard Bin file. They are on an eeprom."
Re: Trying to find the EEPROM in a 98 LS1 PCM
Whats its VIN? We can lookup what the factory OS/Cals are suppose to be, it might also show a slave OS if it does have one.jamesried wrote:That is my understanding or something like it. Nothing in the pcm otherwise screams "hey i'm a flash chip" I even opened up the middle and there's nothing inside (it's a weird 2 PCB deal with the ribbon cable between it)
Your Local Aussie Reverse Engineer
Contact for Software/Hardware development and Reverse Engineering
Site:https://www.envyouscustoms.com
Mob:+61406 140 726
Contact for Software/Hardware development and Reverse Engineering
Site:https://www.envyouscustoms.com
Mob:+61406 140 726
Re: Trying to find the EEPROM in a 98 LS1 PCM
2G2FV22G5W2231487Tazzi wrote:Whats its VIN? We can lookup what the factory OS/Cals are suppose to be, it might also show a slave OS if it does have one.jamesried wrote:That is my understanding or something like it. Nothing in the pcm otherwise screams "hey i'm a flash chip" I even opened up the middle and there's nothing inside (it's a weird 2 PCB deal with the ribbon cable between it)
Re: Trying to find the EEPROM in a 98 LS1 PCM
Only lists one calibration module on the TIS site:
9375581 9375573 N/A New calibration to correct the A/C compressor from cycling improperly during heavy acceleration.
9375581 9375573 N/A New calibration to correct the A/C compressor from cycling improperly during heavy acceleration.
Re: Trying to find the EEPROM in a 98 LS1 PCM
Yeah just checked that also. It could be that SPS may download additional files that are not shown in the SPS calibration screen (Which does occur for certain modules such as E38's).
Your Local Aussie Reverse Engineer
Contact for Software/Hardware development and Reverse Engineering
Site:https://www.envyouscustoms.com
Mob:+61406 140 726
Contact for Software/Hardware development and Reverse Engineering
Site:https://www.envyouscustoms.com
Mob:+61406 140 726
Re: Trying to find the EEPROM in a 98 LS1 PCM
More info from the HPT website. I stupidly flashed his hptuners file to this replacement PCM and probably caused it. Though I've had no issues doing that with other non-hptuners tools (tunercat, efilive, etc) with binaries i pulled from SPS.
https://forum.hptuners.com/showthread.p ... -read-this
https://forum.hptuners.com/showthread.p ... -read-this