NO SPARK

[KEYSVILLEDAVE]

1990 mustang 5.0 weak spark at coil no spark at plug new plugs,dist.cap rotor button ,coil module, wires. Ohm out module check all voltages ,grn. Still no spark at plugs weak spark with dist. To coil lead grounded

[hottcobra]

did you ohm your ground wire, or just check with test light?

[1234]

What about the pickup in the distributer?

[Herbstang]

Bad secondary power ground ,loose computer power ground , Bad EEC relay what color is the spark? a bright orange indicated a weak spark. blue orange means a good spark. a blue white spark knocks you ON YOUR ASS