Eprom Ecu

[DSMguy023]

does any body know if the 4g63nt engines ever have a eprom chip in the ecu?

 

[Daedalus]

they did... dont ask me what year, etc. I dont know... BUt i have seen a N/T eprom ecu before.... i Just wish i would've held onto it.

 

[DSMguy023]

ok cool well i will try to find out. thanks man

 

[Pokey's1G2.0N/T]

I have a 94 es 2.0 i just pulled the ecu out the other day to check the caps and was suprised to see a eprom on the board (caps good). For 1990 owners you have to open the ecu to see if you have a eprom chip, wich is located (harness conector facing up) on the lower right hand corner. 91' and later eprom ecu's will have a E in the lower right hand corner of the label. Im currently in the middle of a turbo conversion. I'm curious since I have a n/t eprom ecu can you install a eprom upgrade chip for a turbo ecu and "viola Instant turbo ecu"? I understand that the programming is on the eprom. This would work I supose if the circuitry were the same. Any Ideas?

 

[LightningGSX]

I have a 94 es 2.0 i just pulled the ecu out the other day to check the caps and was suprised to see a eprom on the board (caps good). For 1990 owners you have to open the ecu to see if you have a eprom chip, wich is located (harness conector facing up) on the lower right hand corner. 91' and later eprom ecu's will have a E in the lower right hand corner of the label. Im currently in the middle of a turbo conversion. I'm curious since I have a n/t eprom ecu can you install a eprom upgrade chip for a turbo ecu and "viola Instant turbo ecu"? I understand that the programming is on the eprom. This would work I supose if the circuitry were the same. Any Ideas?

No, the turbo ECU's have additional circuitry, such as a knock filter and MAF reset.