JCurry

iTrader: (6)

Ok i was just looking at some stuff under the hood with the car cranked and noticed that if i unplug both trailing plug wires from the trailing coil it does nothing to the car, i mean the idle dosent drop or anything, and even if u arch the wires the idle doesent move, this is with the car warmed all the way up, i mean whats the deal is this normal, i mean with both unpluged the car runs the same in or out..

Justin

DerangedHermit

No, that's not major. For combustion of a face it actually sparks 3 times. 2 leadings and 1 traililng. The first spark (leading) pretty much does everything. The 2nd spark (trailing) just makes sure it made a good boom. The 3rd spark (leading again) kinda does the same as the 2nd spark.

I know that's mostly right, not sure on the 2nd and 3rd spark details entirely. But that's the general concept.

Icemark

Trailing spark only helps lower emissions and increase gas mileage

zinx

iTrader: (3)

I think it equates for about 5% of your HP too

JCurry

iTrader: (6)

ok thanx guys