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AW4 brain

MJ1990buildup

NAXJA Forum User
Location
Chesapeake Beach
I put a 92 aw4 into my 90 mj a year and a half ago, just wondering what is really happenening when i swtich from power to comfort, did they change the wiring in the tranny or was it onboard, tps, etc.
the harnesses did snap right in when i was putting the tranny in

the shift patterns are different when you go from power to comfort,

i've been thinkin about hardwiring it to power and using that switch for an adjustable map sensor
 
You can easily hardwire it for power. The later tranny and brain are essentially the same, locked into power mode. I can't remember now whether power is with the switch open or closed - I think it's closed, but wouldn't bet my life on it. You should be able to check that easily enough by unplugging the switch to see what the default is.
 
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