ok i have a 91 si hatchback which i gonna put a d16z6 motor in due to the fact my motor blew up the other day i just need to know will my ecu work with this motor also will the harness work?????

 

1. yes your ecu will work, but it wont be 100% . since there wont be any vtec activation, and the ignition and fuel maps arent correct. it will start and run fine. dont expect it to run perfect.

2. always use the original harness, the d16z6 harness is not compatible.

 

i would just find another a6, you are already compatible with that and then later on down the road do a mini me. seems easier, unless its not daily driven then id get an obd1 conversion harness and a p28 ecu, and the z6. im not sure if you still have to run new wires for vtec or not though. or you could wire up your vtec and chip your stock ecu with the p28 map. its all up to you.

 

ya that is an option, but its pretty rare too find a a6 in decent condition that wont need rings badly. most a6's these days have about 200,000 miles on em.

 

SOHC ZC