Bought an apexi timer with the built in a/f and o2 sensors i know how to wire it in just wondered if it will be the same even on the c-one ?

RE; 1.white wire to white on the loom
2.black wire to black on the loom unless no o2 then earthed out
3.grey wire to grey

Well if they are the same wires then they will be going to the same places and controlling the same things. so yes.

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1990 Toyota GT-Four ST185. RC motor, 205 box and a GT30!!


1987 Toyota GT-Four ST165. Wanting to be a Rally car!

Will be the same as above. I can't rember the wires, I just used the ecu pinout diagrams when I wired mine up
Found it to be suprisingly accurate for a narrowband sensor

If you hunt on the net there's an AFR/voltage chart for narrowband sensors which you can use to program the Apexe display (if it's the same as mine, a box with seperate display "tube")

yep a pen type

did u get this of ebay by any chance cus im having trouble with mine i recently fitted.
will only tick over for 5 seconds after i remove the keys

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once you go jap you never go back

yep did get it off the bay only because ive already got an apexi harness but it seems to work as a timer if your not using the the a/f and o2 sensor part you have to earth the thin black wire out as well ?