smallport 4AGE Speed sensor

[The Witzl]

any AE92 with an EFI motor generated the 4-pulse-per-revolution speed signal from the back of the speedometer.

I have heard rumour that some (maybe not all) AE86 speedos have the same ability - look for a point labelled "4P" on the pcb behind your gauges.

If you dont have it, then you will have the 7200rpm rev cut that I also had with my smallport engine in my old AE71.


you "could" build a circuit to generate the pulse... it's quite a basic signal really. The only concern i have is the questions surrounding what else the ecu does with that speed signal.....

[mic*]

you "could" build a circuit to generate the pulse... it's quite a basic signal really. The only concern i have is the questions surrounding what else the ecu does with that speed signal.....

Was gonna say that...

Should be ok tho as long as you arent running an auto??? I cant see how the ECU would dramatically vary fueling.

[roadsailing]

was hoping your would see this witzl,

i read that rumor on twincam, and i'm buggered if i can find that point on the back of my spare aussie AE86 instrament cluster (though i have only looked at the plastic PCB thing, dont really want to dismantle the cluster)

so that means i can either glue magnets to the tailshaft or run a wave generator.

i look at it like this, is telling the ECU that the cars is always travelling at 50km/h any worse than not giving it a speed signal?

[roadsailing]

The Australian cluster does indeed have a speed signal output

for anyone searching for this info, see

http://toymods.net/forums/showthread...2110#post82110