Question about 1994 Mazda 323
Hi, I have a Mazda rustler pickup truck. The car will not start, If i connect a lead from the one side of the coil to the battery it starts, there are no blown fuses. one side of the coil gets 12v when i turn the key on... What could be the cause for no power on the other coil terminal?
SOURCE: mazda rustler 160i
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.
Weak spark at the plug wire with the above good indicates distributor cap/rotor replacement time...
Gerrie, I hope this is what you are looking for, best of luck, and if you feel my advice worthy, please rate it!!!
Posted on Jun 22, 2008
couple of things
does the mustang have a ballest resisor fitted between the ign switch and the coil? in which case it should be a 9v coil or remove the ballest resistor to run a direct 12v feed from the ign switch, or just to test run a 12v feed direct from battery to coil.
the feed to the dissy is switched by the points opening unless you have electronic ignition,
but in both cases the capacitor/condenser may have broken down causing a consent feed hence given permenant live through the coil,
to test if you have points rotate engine so points are closed, put meter on coil and test if volts change when you open the points, or a spark out of ht to dissy lead
if electronic ign you will have to rotate engine or dissy to activate spark ,
Posted on Dec 20, 2009
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