tacho- negative of ignition coil or the ecu

[2fas4u]

hi all, last question in regards to hooking up a monster tach to a 90'sw20, which is easier to hook up the sensor wire too, the neg of igntion coil or the pin out on the ecu? where exactly to i find each of the too. not as mechenically minded n talented as some of u, if u could point me to where i can find each pref with pics or diagrams, will be greatly appreciated. hooked under the bonnet and engine bay but dunno what to look for. cheers.

[matt dunn]

which is easier to hook up the sensor wire too, the neg of igntion coil or the pin out on the ecu?

Neither.

On a SW20 that already has a tacho it is easier to pull out the instrument cluster and hook into the existing tacho feed.

Matt

[2fas4u]

which is easier to hook up the sensor wire too, the neg of igntion coil or the pin out on the ecu?

Neither.

On a SW20 that already has a tacho it is easier to pull out the instrument cluster and hook into the existing tacho feed.

Matt

excellent! now which colour wire behind the instrument cluster do i hook up to on the existing rev meter?

[aesc]

If your going off the back of the dash cluster then it wont be a wire, but there are heaps of screws back there going into the back of the cluster itself. On mine I hooked onto the screw 'P' but it could be something different on an mr2, like N-

[2fas4u]

If your going off the back of the dash cluster then it wont be a wire, but there are heaps of screws back there going into the back of the cluster itself. On mine I hooked onto the screw 'P' but it could be something different on an mr2, like N-

wat do these letters short for? i spose p=pulse, n=negative?

[gdsup]

if it already has tacho in the dash that works why are you putting a monsta tacho?

[TygerTung]

Must be broken I guess

[2fas4u]

cos a gizmo shiftlite gonna cost me nearlly 200 bucks so for extra 25 bucks, i might as well get the tacho with it.