1990 eprom chip

[SpoolinV8killa]

Is the 1990 tmo or any ecu chip different then the 91-94? Will a chip from a stage 3 eprom chip from a 91-94 work on my 1990eprom ecu? I was thinking of picking up one of the 89.00 chips from ebay but they said they were not sure if it would work on a 1990 e-prom ecu. thanks in advance

-Yash
Las Vegas

 

[Bodyman]

according to the part number on my ecu it is a 90, and i did have to change the 2 wires to put it in my 91. it is an eprom and i have a stage 3 chip in it and it works great