The computer uses the knock sensor to listen for detonation
(spark knock)if the computer senses detonation through the knock sensor it retards the timing enough to stop it.


1986 Toyota 4Runner.

Solid Axle Swap, 5'' Lift, 37'' MTR`s, Duel Cases, Detroit Locker Rear, ARB High Pinion Front, 4.88 Gears, Cross Over Steering, Trail Gear Sliders, Addicted Off Road Front Bumper.