Dumb ***** Question

[old banger]

I know this may sound really stupid but where is the ECU??? Is it in the boot or under the dash. Sorry for sounding so dumb.. I should say its on a mk2 rev 1

[KiwiMR2]

In the boot......if your standing looking into the boot it will be on the left side of the wall that seperates the boot & engine bay.

Cheers

KiwiMR2

[old banger]

and is it easy to find the speed sensor wire??? as im fitting my sat nav stereo tommorow morning???

[Stef Derner]

and is it easy to find the speed sensor wire??? as im fitting my sat nav stereo tommorow morning???       

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Easier at the back of the speedo. If you have a rev 1 you can trace the track from the speedo to the connector. One screw is ground and the other is the signal. The pulses are generated in the speedo on a rev 1.

On a rev 2 or later, the speed pulse in (12v) is the top left screw and the speed pulse out to the ECU (5V) is the top right.

Why run a cable from the stereo to the ECU when there is already a wire in place?