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ea ecu question

2K views 4 replies 5 participants last post by  TaraHymen 
#1 ·
i have a 3.9l auto ea s pak.
Would i need to get a s pak mpfi ecu or any 3.9l mpfi ecu??
i ask this cause the s pak has tacho ect
 
#4 ·
Any auto computer which is pre-Smartlock. Manuals will not adjust the idle for when the car's in D, so it tends to stall :p
The tacho is part of the wiring and has nothing to do with the computer - the feed for it is taken off the back of the coil and runs round the front of the bulkhead to the dash.
 
#5 ·
there are tacho pickups everywhere. on an ea from memory, there is one by the booster, one on top of the throttle body, one in the passenger footwell and one above the starter motor.

even i wanted to wire in an aftermarket tacho, tap into the pink wire with blue trace
 
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