1993 Other Mazda Models Engine misses

Hi there,

Thank you for the donation,

You may want to run the engine on an oscilloscope, this will give a true indication as to the viability of the ignition system, You wont always see a spark earthing, nut what you describe does sound like it, you could just change the plugs, leads, & filters, but the scope will show coil voltages & ignition pattens as well as identify any earth leakage, a good mechanic will diagnose any basic problem on a scope in under 5 min.

Mark (mhpautos)