If ecu is eprom

[StarDiamond]

I was wondering if anyone could tell me how i can tell if a 91 ecu is eprom. I got it off a parts car that i have and i was j/w how can i tell if it is eprom. Thanks

 

[ballagsx]

there is a vfaq for that. you should try erching there.
i think taht most of the eprom ecus have an E in the lower right corner of the label. the only way to tell for shure is to open it and see if it has one.

 

[KFT0001]

Unscrew the cover of the ecu and see if there's a large rectangular chip on there with a sticker that says E### (it doesn't actually say ###, it will have numbers there). If you hold the ecu with the plug facing up, the eprom chip is in the bottom right corner of the board. If you have a blank spot there instead, then you don't have an eprom.

 

[StarDiamond]

thanks it is eprom