How to tell a 1g EPROM from a 2g?

[Karnich]

Hi

Is it possible to tell a 1g EPROM ECU from a 2g EPROM ECU? if so, how?

also is there 2g EPROM ecu's for the n/a engines? if so, how can i see the difference from the n/a eprom ecu and the turbo eprom ecu?

hope you guys can help!

[turbosax2]

DSMLink - FAQ - EPROM

2g ecu's have 4 ecu connectors, 1g's only have 3.

[my98gsx]

If you take the cover off of the ECU in the lower right hand corner of an Eprom ecu you will see what looks like an after market chip mounted on the board. On the 2g non eprom computors this spot is bare... there is nothing there. if i can find it ill post up the picture differences. This can be found on the dsmlink website.

[crimsondragon]

Originally Posted by my98gsx

If you take the cover off of the ECU in the lower right hand corner of an Eprom ecu you will see what looks like an after market chip mounted on the board. On the 2g non eprom computors this spot is bare... there is nothing there. if i can find it ill post up the picture differences. This can be found on the dsmlink website.

He asked how to tell 1g EPROM's apart from 2g EPROM's, not how to tell if it is an EPROM.

[Karnich]

Originally Posted by turbosax2

DSMLink - FAQ - EPROM

2g ecu's have 4 ecu connectors, 1g's only have 3.

thanks .

is there a such thing as a 2g n/a EPROM ECU? or is it only the turbos that run EPROM ecu's?

if there is, can you tell the difference in the number on the case or anything?

[crimsondragon]

Originally Posted by Karnich

thanks .

is there a such thing as a 2g n/a EPROM ECU? or is it only the turbos that run EPROM ecu's?

No. Even if there is, it would be of no use to 4g63 motors.

[Karnich]

Originally Posted by crimsondragon

No. Even if there is, it would be of no use to 4g63 motors.

so if there is a EPROM ecu(mitsubishi one) with 4 pins.. i can be 100% sure that its for a 2g turbo ya?

[93_tsi_fwd]

Yes, all 2g turbo's have 4 pin connectors.

[Karnich]

im not sure but it looks like this is a 3pin?

can anyone confirm that this is a 1g EPROM ECU?

[1992awdlaser]

1g e-prom

[93_tsi_fwd]

here is a picture of a 2g eprom ecu.

<a href="http://s25.photobucket.com/albums/c55/divinaand1/car%20parts/?action=view&current=P0003957.jpg" target="_blank"><img src="http://i25.photobucket.com/albums/c55/divinaand1/car%20parts/P0003957.jpg" border="0" alt="Photobucket"></a>

[93_tsi_fwd]

Originally Posted by Karnich

im not sure but it looks like this is a 3pin?

can anyone confirm that this is a 1g EPROM ECU?

Yes its a 1g eprom ecu. what car did that ecu came out of?

[44pirate]

It doesn't mount in a E T L. The case doesn't look like has the mounting tabs to go behind radio.