can i simply buy a digital heat/ac control unit and put it in where my old regular heater controls where? these are digital heater controls for the 89 going into a 90

 

www.car-part.com ? There is a write up on craig b's site I believe

 

I think it's actually a bit more complicated (not sure though)...ask awsm66. I think he did the conversion on his recently

 

Yeah, Mike (awsm66) and Craig B. both did the MCC to ACC swap on their Maxes. It is EXTREMELY tedious work....hours and hours. And no, it is NOT just a plug and play deal, you need to install two sensors in your MCC car and hook them up to the ACC unit, plus a zillion wire splices. Check Craig B.'s site for more info. That will REALLY open your eyes!

 

thanks thats all i needed to know. i just saw one going for cheap on ebay and thought it would look cool in my dash. but if its that much trouble i will just keep my non digital.

 

...smart choice! looking at Craig's HowTo site effectively killed my ambition of the swap too!

 

awww come on guys its not that bad. It can be done with his write up and a little paitence and time. If you know how to follow wiring diagrams and can solder and tape wires you can do this. Give yourself a full weekend to do it and you will be fine.

To me its well worth it ...of course I did have the help of the wiring master himself...Craig B.