|
Use of parts other than original, not good, Beru is the best way to go for spark plug wires. Several 928 vendors in the USA sell an "econo" kit, with just the wires and you reuse the ends you have, buying new ends as needed.
Black smoke usually means fuel to air ratio has too much fuel.
Blue smoke usually means oil is getting into the intake (not unusual, but needs fixing).
Best think would be to get together with a local 928 owner and have him look it over with you.
|