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Yellow wire

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Old Jul 6, 2020 | 02:47 PM
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Yellow wire
there is a yellow wire near the coils on the driver side of my 88 fc. Its left hand drive btw. Any idea what this wire connects to?
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Old Jul 6, 2020 | 03:30 PM
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From: https://www2.mazda.com/en/100th/
is it a bullet connector? if yes its the test port for the ignition/tach, you can get an RPM signal from that
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Old Jul 9, 2020 | 12:08 AM
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Originally Posted by j9fd3s
is it a bullet connector? if yes its the test port for the ignition/tach, you can get an RPM signal from that
thanks!
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Old Jul 18, 2020 | 12:18 PM
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Originally Posted by j9fd3s
is it a bullet connector? if yes its the test port for the ignition/tach, you can get an RPM signal from that
where does it plug in at? It was never connected to anything yet my tachometer would still work.
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Old Jul 18, 2020 | 01:00 PM
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The dash tachometer doesn't take signal from there. It's a test port for an external tach if doing timing adjustment.
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Old Jul 19, 2020 | 09:51 AM
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Originally Posted by JerryLH3
The dash tachometer doesn't take signal from there. It's a test port for an external tach if doing timing adjustment.
oh ok thanks👍
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I have no idea what this could be




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