Just wanted to know what you guys are using for tuning on the SC2's and Cavis 95-99???
either NA or Forced Induction..
Thanks Kevin
70% of 95 J's are chippable and use the software/hardware that works for most chippable cars.
30% of 95 J's are SOL
100% of 96 J's are SOL
97-99 J's are covered by HP tuners.
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very nice! Thanks for the update!
protomec wrote:
100% of 96 J's are SOL
97-99 J's are covered by HP tuners.
that makes me sad panda every time i think about it.
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Nate (THE NASTY ONE) wrote:why are the 96's sol?
because they're an evil bastard child.
gm decided to put out a half-assed ecu in 1996. it is techinically obd-II, but just barely. the first half of the year, the setup was obd-1 programming using obd-2 hardware. once they switched to a complete obd-2 setup, they gave it very limited capabilities, and tuning wasnt one of them.
hptuners doesnt support them, and they're not chippable.
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Rich Grayo Jr. wrote:
because they're an evil bastard child.
gm decided to put out a half-assed ecu in 1996. it is techinically obd-II, but just barely. the first half of the year, the setup was obd-1 programming using obd-2 hardware. once they switched to a complete obd-2 setup, they gave it very limited capabilities, and tuning wasnt one of them.
hptuners doesnt support them, and they're not chippable.
Nope.
96 is fully OBD2. No bastard anything. 95 was the only bastard halfway year.
Here's the breakdown:
95 2.2 (all) and 2.3 Manual use the same chippable PCM. (this is the bastard PCM)
95 2.3 Auto and 96 (all) use the same PCM.
97-99 (all) use the same PCM.
99.5-2002 (all) use the same PCM.
The 96 PCM is just as "tunable" as any other, but the only 2 companies that support J-body PCM tuning -- HPtuners and EFI Live -- have not and currently will not take the time to invest in decoding the program for modification.
I would guess that they do not believe there would be enough interest (sales) to justify the investment. Something that they are probably correct in assuming because I doubt there are more than 20 people seriously interested in tuning a 96.
I don't think the later year's PCMs have been a screaming success on an individual year basis either.
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protomec wrote:Rich Grayo Jr. wrote:
because they're an evil bastard child.
gm decided to put out a half-assed ecu in 1996. it is techinically obd-II, but just barely. the first half of the year, the setup was obd-1 programming using obd-2 hardware. once they switched to a complete obd-2 setup, they gave it very limited capabilities, and tuning wasnt one of them.
hptuners doesnt support them, and they're not chippable.
Nope.
96 is fully OBD2. No bastard anything. 95 was the only bastard halfway year.
Here's the breakdown:
95 2.2 (all) and 2.3 Manual use the same chippable PCM. (this is the bastard PCM)
95 2.3 Auto and 96 (all) use the same PCM.
97-99 (all) use the same PCM.
99.5-2002 (all) use the same PCM.
The 96 PCM is just as "tunable" as any other, but the only 2 companies that support J-body PCM tuning -- HPtuners and EFI Live -- have not and currently will not take the time to invest in decoding the program for modification.
I would guess that they do not believe there would be enough interest (sales) to justify the investment. Something that they are probably correct in assuming because I doubt there are more than 20 people seriously interested in tuning a 96.
I don't think the later year's PCMs have been a screaming success on an individual year basis either.
Todd,
Have you had a chance to play with EFI Live at all? with a Jbody?
With all of that being said, i should point out, that a 96 in not completely SOL. You can rewire a 96 to a 97 pcm iirc. Then you can tune it. Please correct me if im wrong.
What about the Saturn SC2 like mentioned in the title?
steve white wrote:With all of that being said, i should point out, that a 96 in not completely SOL. You can rewire a 96 to a 97 pcm iirc. Then you can tune it. Please correct me if im wrong.
this is very true, and the route i will be taking, if i ever really consider modding my car.
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protomec wrote:Rich Grayo Jr. wrote:
because they're an evil bastard child.
gm decided to put out a half-assed ecu in 1996. it is techinically obd-II, but just barely. the first half of the year, the setup was obd-1 programming using obd-2 hardware. once they switched to a complete obd-2 setup, they gave it very limited capabilities, and tuning wasnt one of them.
hptuners doesnt support them, and they're not chippable.
Nope.
96 is fully OBD2. No bastard anything. 95 was the only bastard halfway year.
Here's the breakdown:
95 2.2 (all) and 2.3 Manual use the same chippable PCM. (this is the bastard PCM)
95 2.3 Auto and 96 (all) use the same PCM.
97-99 (all) use the same PCM.
99.5-2002 (all) use the same PCM.
The 96 PCM is just as "tunable" as any other, but the only 2 companies that support J-body PCM tuning -- HPtuners and EFI Live -- have not and currently will not take the time to invest in decoding the program for modification.
I would guess that they do not believe there would be enough interest (sales) to justify the investment. Something that they are probably correct in assuming because I doubt there are more than 20 people seriously interested in tuning a 96.
I don't think the later year's PCMs have been a screaming success on an individual year basis either.
I have to disagree with you on this one Todd...
They are not fully OBD-2 compliant, some have 3 plug ECU's and some have 2 plug ECU's. They all came with OBD-2 style ports, but some of them (the 3 plug ones) cannot be read with standard OBD-2 scanners (they need an OBD-1 scanner with an OBD-2 plug). HPT doesn't support them because if they sold one to a guy who couldn't figure out if the one he had was OBD-1.5 or OBD-2, then they'd get pissed and return them, along with the "bad press" that goes along with it.
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i tuned my 1997 SC2 with megasquirt.. hada very rough idle, couldnt get rid of but owell..all the 1.9's did that
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Shifted wrote:
I have to disagree with you on this one Todd...
They are not fully OBD-2 compliant, some have 3 plug ECU's and some have 2 plug ECU's. They all came with OBD-2 style ports, but some of them (the 3 plug ones) cannot be read with standard OBD-2 scanners (they need an OBD-1 scanner with an OBD-2 plug). HPT doesn't support them because if they sold one to a guy who couldn't figure out if the one he had was OBD-1.5 or OBD-2, then they'd get pissed and return them, along with the "bad press" that goes along with it.
Cannot be correct.
ALL cars, all makes, all models, sold in the US as 96 or later models are fully OBD2 compliant as required by federal law.
If its 96-up and not fully OBD2 compliant, it was not sold as new in the United States.
95 was the only "half" year. And in 95 there were 2 plug and 3 plug PCMs. 2 plug are the "half" PCMs, 3 plug were full OBD2 compliant (95 2.3 auto only).
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