red89cutty Posted December 22, 2004 Report Posted December 22, 2004 Will a prom chip from a 90 3.1 work on a 89 cutlass wit a 2.8? Quote
5speedz34 Posted December 22, 2004 Report Posted December 22, 2004 I don't think they will because their different motors, but I could be wrong. Quote
SleeperRed90TGp Posted December 22, 2004 Report Posted December 22, 2004 Try it. You won't hurt anything. It will work but you may have issues such as EGR idle and fuel delivery. Here's what memcals went in them. Description: 1227730 in underhood case Application: 1990-92 2.5 L4 TBI “R†LR8 (“W†body) 1988-89 2.8 V6 PFI “W†LB6 (“W†body) 1989-93 3.1 V6 PFI “T†LH0 (“W†body) 1989-90 3.1 V6 PFI turbo “V†LG5 1990-91 5.7 V8 TPI “8†L98 (“Y†body) MEMCAL IDs: “Râ€Â: APTW, … “Wâ€Â: AMAS, APWM, ATRA, … “Tâ€Â: ARCX, ARZW, ATSN, ATSP, AUMY, … “Vâ€Â: ASAN, ASMF, ATMJ, ATMK, AUAD, AUAF, AUFR, AZRC “8â€Â: ANHT, ARFP, … Jud Quote
Guest Anonymous Posted December 22, 2004 Report Posted December 22, 2004 I was told they are basically the same. BUT after driving my GP with a 3.1 with a 2.8 chip I would have to disagree. I had a little rough idle and not so good gas mileage. Put a 3.1 chip in and everything straightened out. Quote
5sp gp Posted December 22, 2004 Report Posted December 22, 2004 so would a 3.1 chip give a 2.8 any more ass and do i have to find one out of a 5spd car Quote
5sp gp Posted December 22, 2004 Report Posted December 22, 2004 so would a 3.1 chip give a 2.8 any more ass and do i have to find one out of a 5spd car Quote
Vegeta Posted December 23, 2004 Report Posted December 23, 2004 Use the chip made for the car, period. Using a 3.1 chip in a 2.8, given the same EGR and code mask, speedo code, etc, will not give you more power or better drivability. Sure, some chips will swap between them and run the car but its not going to be optimal (as far as optimal from GM is concerned). Quote
Intlcutlass Posted December 23, 2004 Report Posted December 23, 2004 Try it. You won't hurt anything. It will work but you may have issues such as EGR idle and fuel delivery. Here's what memcals went in them. Description: 1227730 in underhood case Application: 1990-92 2.5 L4 TBI “R†LR8 (“W†body) 1988-89 2.8 V6 PFI “W†LB6 (“W†body) 1989-93 3.1 V6 PFI “T†LH0 (“W†body) 1989-90 3.1 V6 PFI turbo “V†LG5 1990-91 5.7 V8 TPI “8†L98 (“Y†body) MEMCAL IDs: “Râ€Â: APTW, … “Wâ€Â: AMAS, APWM, ATRA, … “Tâ€Â: ARCX, ARZW, ATSN, ATSP, AUMY, … “Vâ€Â: ASAN, ASMF, ATMJ, ATMK, AUAD, AUAF, AUFR, AZRC “8â€Â: ANHT, ARFP, … Jud Thats just reflecting the same part number for the computer/chip... Not the programing. BUT!, I have to say that they are probably the same programing cause the 2.8 & 3.1 are really the same engine. Same injectors, same timing ect... If you do feel any difference.... your probably just your imagination. Quote
Vegeta Posted December 23, 2004 Report Posted December 23, 2004 They aren't the same programming. The fueling is different and so is the spark table, and the PE fueling. Nope, not the same at all. Quote
Intlcutlass Posted December 23, 2004 Report Posted December 23, 2004 They aren't the same programming. The fueling is different and so is the spark table, and the PE fueling. Nope, not the same at all. There... I learned somthn' Good info Vege.... 8) Quote
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