nickpe

other then changing the ECU, what other changes must be done for the 86 ECU to work in my 85.is it true that you can better tune the 86 chip vers the 85. i have a 540 lift cam and need to chip my ECU. also you can make more changes in the 86 chip. all comments welcome and thanked.

rodj

You also need the '86- '89 MAF relay setup to replace the '85 module under the dash

Oldie but goodie
http://www.eecis.udel.edu/~davis/z28/ecm_swap/

ECM wiring changes
http://home.earthlink.net/~gellett/7165swap.htm

'165 ECM updates data much faster than the '870 ECM in the '85 which transmitted at only 160 BAUD
The ALDL data rate on the '165 can supply data at 8192 BAUD

ggrassmid