Question about 1994 Mazda 323

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No spark i have a Ford 1300 Tracer in S.A. this is the Mazda Sting.My problem is the positive to the coil.I have a positive to the coil but not strong enough to get the unit to spark.I connect a direct positive to the coil and the car starts.Ihave spark.Ihave tested the wire to under the dash behind the radio and from the coil to that position is fine,i cant locate the wiring any further without pulling the dash apart.Does this wire go to a relay or to the ignition?

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  • johngadsby Dec 03, 2008

    black/white wire leaves coil.the black/white wire at ignition changes to black yellow so i'm finding it difficult to locate the rite wire at the ignition.

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You'd need to track down a wiring diagram to be certain, but usually the power feed for the coil comes direct from the ignition switch contacts. If you take the steering column shrouds off and measure the resistance across the switch contacts that supply the coil, there should be very little resistance there. If there is more than a few ohms it's best to replace the ignition switch. Also check the power supply to the switch and compare with power out, if it drops a lot, then the switch is at fault (might be easier to do this than measure resistance).
Hope this helps, Mark

Posted on Dec 03, 2008

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WildBill49 here......Not knowing the specific year and version of your Mazda, I cannot give you a specific part at fault, but I can help you. I am assuming we're talking about an electronic distributor single coil ignition system

If the spark is weak directly out of the coil (with a known good coil hooked up with correect polarity), then the problem is in the spark trigger module... There is a variety of designs, but the basic components remain the same. This is the part of the ignition system that replaces the breaker points. It consists of two parts - a magnetic spark trigger sensor, and a spark signal amplifier/controller. these are sometimes combined into one ignition module.

Replace this module, and spark from the coil should be strong! If it is still weak, reverse the two wires to the coil.

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Gerrie, I hope this is what you are looking for, best of luck, and if you feel my advice worthy, please rate it!!!

Thanx-
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