HOW TO 99-02 PCM into 97-98 Corvette
05-30-2015, 10:08 AM
#121
"There is no need to worry about the fuel gauge, it will work as is. Only the file needs to be changed and the fuel gauge parameters calibrated. The ASR will not work though"
Can anyone confirm (or deny) comment made on another forum about the ASR not working after doing the '98 to '02 conversion.
My PCM is functional, but, for some reason, not allowing ANYONE to read or write to it - so my dreams of getting a decent tune on this thing are 'up the creek' without finding a solution. The '98 to '02 solution looks quite 'do-able', but it would be nice to know for sure if I'm about to lose traction control.
Can anyone confirm (or deny) comment made on another forum about the ASR not working after doing the '98 to '02 conversion.
My PCM is functional, but, for some reason, not allowing ANYONE to read or write to it - so my dreams of getting a decent tune on this thing are 'up the creek' without finding a solution. The '98 to '02 solution looks quite 'do-able', but it would be nice to know for sure if I'm about to lose traction control.
05-30-2015, 11:12 AM
#122
Team Owner
"There is no need to worry about the fuel gauge, it will work as is. Only the file needs to be changed and the fuel gauge parameters calibrated. The ASR will not work though"
Can anyone confirm (or deny) comment made on another forum about the ASR not working after doing the '98 to '02 conversion.
My PCM is functional, but, for some reason, not allowing ANYONE to read or write to it - so my dreams of getting a decent tune on this thing are 'up the creek' without finding a solution. The '98 to '02 solution looks quite 'do-able', but it would be nice to know for sure if I'm about to lose traction control.
Can anyone confirm (or deny) comment made on another forum about the ASR not working after doing the '98 to '02 conversion.
My PCM is functional, but, for some reason, not allowing ANYONE to read or write to it - so my dreams of getting a decent tune on this thing are 'up the creek' without finding a solution. The '98 to '02 solution looks quite 'do-able', but it would be nice to know for sure if I'm about to lose traction control.
https://www.corvetteforum.com/forums...z06-rkt56.html
PM him and he just might be able to get you fixed up -
Thanks,Matt
05-30-2015, 11:16 AM
#123
Team Owner
"There is no need to worry about the fuel gauge, it will work as is. Only the file needs to be changed and the fuel gauge parameters calibrated. The ASR will not work though"
Can anyone confirm (or deny) comment made on another forum about the ASR not working after doing the '98 to '02 conversion.
My PCM is functional, but, for some reason, not allowing ANYONE to read or write to it - so my dreams of getting a decent tune on this thing are 'up the creek' without finding a solution. The '98 to '02 solution looks quite 'do-able', but it would be nice to know for sure if I'm about to lose traction control.
Can anyone confirm (or deny) comment made on another forum about the ASR not working after doing the '98 to '02 conversion.
My PCM is functional, but, for some reason, not allowing ANYONE to read or write to it - so my dreams of getting a decent tune on this thing are 'up the creek' without finding a solution. The '98 to '02 solution looks quite 'do-able', but it would be nice to know for sure if I'm about to lose traction control.
https://www.corvetteforum.com/forums...wnbluez06.html
Thanks,Matt
07-14-2015, 01:01 PM
#124
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Fascinating discussion indeed- how does this conversion factor into passing emissions? In my state- our emissions are done via an OBDII reading. If a VIN from a newer car is used, I'm hoping it won't cause it to automatically fail if it doesn't match the VIN on record...
03-30-2016, 03:39 PM
#125
Advanced
Can you swap out 98 C5 PCM for a C6 PCM?
There seems to be alot of misinformation about the computers in our cars, how they work and if they are interchangeable or not... I'm running E-85 fuel in my 383 Stroker and wanted to know if I could swap my 1998 C5 PCM for a C6 PCM? The C6 PCM is fast enough to run a Flex fuel setup and the C5 PCM is too slow...
Thanks,
Roger
Thanks,
Roger
03-30-2016, 04:02 PM
#126
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St. Jude Donor '07-'08-'09-'10-'12-'13-'14
EFI LIVE will let you....
Fascinating discussion indeed- how does this conversion factor into passing emissions? In my state- our emissions are done via an OBDII reading. If a VIN from a newer car is used, I'm hoping it won't cause it to automatically fail if it doesn't match the VIN on record...
You should have no problems if it's tuned correctly.
Chuck CoW
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ericdwong (03-30-2016)
03-30-2016, 09:42 PM
#127
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03-31-2016, 01:00 PM
#128
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St. Jude Donor '07-'08-'09-'10-'12-'13-'14
What I know of it....
I don't believe you can outright "punch in a new vin" like you can with efi live.
One reason being that HPT uses the vin it sees to set itself up and make decisions on licensing and such
and compatibility of tunes. I also believe you need to have a full YEAR/MODEL license or "group License"
to perform some of the vin related functions.
Single license users won't like have any of such features.
I'm not really up to speed on how they do what they do.... I know EFI LIVE very well.
Maybe someone out there can add to this conversation?
Chuck CoW
01-19-2017, 04:00 PM
#129
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Going back to the 98 to 2000 PCM conversion, it looks like there are a lot of problems to overcome. I'm new to tuning. I think I'll keep my original PCM. What opinion, If any, does anyone have about using J. Solomon Kostelnik - lt1pcmtuning.com to tune my 98 PCM?
01-20-2017, 01:16 AM
#130
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St. Jude Donor '07-'08-'09-'10-'12-'13-'14
In my opinion.....
Unless that is you're after some EFI LIVE Custom OSs for boosted
cars and even then it's still a pain in the ***.
I've seen guys do it just because they think it's "better" some how.....
But usually not worth it.
Chuck CoW
01-20-2017, 12:55 PM
#131
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In my opinion..... In most cases, it IS NOT worth the trouble or time to switch to the later OSs or software versions, or pcms.....
Unless that is you're after some EFI LIVE Custom OSs for boosted
cars and even then it's still a pain in the ***.
I've seen guys do it just because they think it's "better" some how.....
But usually not worth it.
Chuck CoW
Unless that is you're after some EFI LIVE Custom OSs for boosted
cars and even then it's still a pain in the ***.
I've seen guys do it just because they think it's "better" some how.....
But usually not worth it.
Chuck CoW
There is good reason Chuck, when you make a 97/98 PCM operate a high powered automatic, the processor is not fast enough to keep up with transmission shifting.
I have seen this more times than I can count, all corrected with updating the PCM. IMHO it's an easy swap, I had it down to about four hours.
And of course the lack proper boosted VE tables etc.
01-23-2017, 05:15 PM
#132
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St. Jude Donor '07-'08-'09-'10-'12-'13-'14
The reason I mention it.....
There is good reason Chuck, when you make a 97/98 PCM operate a high powered automatic, the processor is not fast enough to keep up with transmission shifting.
I have seen this more times than I can count, all corrected with updating the PCM. IMHO it's an easy swap, I had it down to about four hours.
And of course the lack proper boosted VE tables etc.
I have seen this more times than I can count, all corrected with updating the PCM. IMHO it's an easy swap, I had it down to about four hours.
And of course the lack proper boosted VE tables etc.
These posts mislead people into thinking it's just "BETTER" in some way.
When you are making big power WITH an auto.... This mod has it's place, but for most people out there....
It's just not worth the time or trouble.
Chuck CoW
08-07-2017, 09:48 AM
#133
Tech Contributor
A suggestion that makes this job easier for me: Buy some spare plugs for the ECM. Pull the pin from the old plug and move it to the new. Once completed, you'll have some plugs that you can sell if you care to spend the time.
Bret
Bret
08-20-2019, 06:25 PM
#134
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Good evening I have a 1998 with a big issue on the wiring or computer, At this point Im lost!! If i could speak with you I would really appreciated! Im at 407 902 9448, My name is frankee, thanks
08-20-2019, 07:40 PM
#135
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CI 6,7,8,9,11 Vet
St. Jude Donor '08
Message left on your phone..
02-08-2020, 08:53 PM
#136
There seems to be alot of misinformation about the computers in our cars, how they work and if they are interchangeable or not... I'm running E-85 fuel in my 383 Stroker and wanted to know if I could swap my 1998 C5 PCM for a C6 PCM? The C6 PCM is fast enough to run a Flex fuel setup and the C5 PCM is too slow...
Thanks,
Roger
Thanks,
Roger
I know this is a very old post.. But I've Dove deep into C6 wiring harnesses, all of them. I got them from a 2008 C6 w 5k miles total and it's a good means for me to wiring my build. I'm using a selection of the 08 Vintage parts in this build, which is powered by a GM Performance LS3.
The 08 Corvette ECM and BCM, communications interfacing to the other computer modules, is completely different. So I'm wondering what was your decision on the ECM Swap ?
Michael..
