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ecm prom chip


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Posted

I don't think they will because their different motors, but I could be wrong.

Posted

Try it. You won't hurt anything. :D 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

Guest Anonymous
Posted

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.

Posted

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).

Posted
Try it. You won't hurt anything. :D 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.

Posted

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.

Posted
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)

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