Quick 93 ECM question
04-09-2011, 06:09 PM
#1
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Quick 93 ECM question All of the ECM's from 93 are the black plastic ones with the removable PROM chips right? Even the M6 ones?
Reason I'm asking is because I payed for a 93 ECM from a guy on here and got the newer style metal ECM, no PROM chip.
Reason I'm asking is because I payed for a 93 ECM from a guy on here and got the newer style metal ECM, no PROM chip.
04-10-2011, 01:31 AM
#3
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It's a black metal case with 4 square ports and hopefully a 4 letter code. A small cover plate has to be removed to expose the chip.
04-10-2011, 08:10 AM
#4
http://i38.photobucket.com/albums/e1...e/IMG_9067.jpg
http://i38.photobucket.com/albums/e1...e/IMG_9068.jpg
Inside, you'll find a long blue plastic module that clips to the board.
http://www.thirdgen.org/tech/images/prom/1138118.jpg?
If the ECM has already been tuned, it probably has a memcal piggyback adapter
which "inserts" the new chip between the board and the blue module.
http://www.thirdgen.org/tech/images/prom/1138117.jpg
Here's some thirdgen info, most of it also applies to the 93 LT1
http://www.thirdgen.org/promintro
Note that if you put the new PROM on the adapter backwards, you will fry it (LFMF)
