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Thread: RPM and Speed Signal Wires Z20LET Astra Mk4

  
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    aussiegman's Avatar
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    RPM and Speed Signal Wires Z20LET Astra Mk4

    HI all, I'm looking for the speed and RPM signal wire that run behind the dash from the MFD or headunit to the instrument cluster.

    I have been told the speed is on the ISO connector for the headunit and is red with a blue strip.

    Can someone confirm this and also what the RPM signal wire is. I think its a green wire with a brown strip or something similar.

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    red/blue wire is correct.
    green behind clocks for revs.

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    you can see the green wire for revs here:

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    You are the MAN!!!

    Thank you very much...

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    no problem
    my car was an envoy, so im not 100% sure the wire's will be the same as GSI, i doubt that their different though.

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