Quote Originally Posted by JP
the speed sense signal in my GX81 GT with manual 1GGTE went from the dash to the ECU. The Speed signal output on the back of the actual speedo assembly was screenprinted with "4P"

So if Regan wants no speed sense CEL's, he can wire the output from the AE86 dash (all AE86 speedo's have the reed switch output that MOS described) to the 1G ECU, and put the jaycar kit inline in that wire to modify the speed cut.
Whoops, sorry dude.
I was getting confused with the other speedo thread.