spark plug wires

[Jeff4764]

Ive been having a problem with starting my car and idleing when its hot. most recently ive noticed It misses once in a while. Ive changed the coils, spark plugs, coolant temp sensor, intake air temp sensor, all fuel injectors, bypass air control valve, and starter. The only thing i havent checked is the spark plug wires. I just looked at them a few minutes ago though and noticed there is a white powder on them underneath the plastic tubes that cover each one. They are the original wires from 1987. is this a plausible thing that could possibly be my problem.

[ZGN]

If those things are the original ones, it's time to replace them!

[Jeff4764]

they say 1987 right on them theyre definately original. Im hopeing thats the problem, but at the same time would be pretty angry after spending so much money on trouble shooting.

[mfisher12]

yup you need wires

[RETed]

White powder is bad.
That's a sign that it's arcing.
More accurately, it's arcing inside the boot.
That means there's no secure connection from the coil tower to the spark plug wire connector - it's arcing to make this connection.


-Ted

[SpooledupRacing]

yeah bad news replace those plug wires.

[Max777]

http://www.partsgeek.com/gbparts/1991/mazda/rx7/spark_plug_wire_set/ngk.html?utm_source=google&utm_medium=ff&utm_term=1991+Mazda+RX-7+Spark+Plug+Wires+-+NGK&utm_content=ymmbp_n&utm_campaign=PartsGeek+Google+Base

There you go!

Petty Cheap replacement!

[SpooledupRacing]

hell I have a set with less then 800 miles on them u can have them for 20.00 and i will ship them for FREE to lower 48