When the fuel/air mixture ignites, many factors must be met to pass a misfire monitor.
Knock sensors are mounted on the block near the base of the cylinder head.
What if there are no codes and a misfire is intermittent? This is where it gets complicated.
Understanding why ‘Mode $06’ was developed and how it works to identify misfires.
Engineers have devised two strategies that can be called the “immune system” for the electrical system.
To see inductance inside the primary windings, use an amp probe placed around the positive wire for the ignition coil.
Misfires that turn on the check engine light and log a cylinder-specific fault code are the easiest to diagnose.
Pre-ignition is very damaging because of two dynamics inside the cylinder.
By performing these easy checks, you can determine if the spark plug wires are the problem or it is another component in the ignition system or on the engine. Sponsored by Blue Streak.
When a spark plug fires, it is not an instantaneous ignition of all the molecules of air and fuel. When the spark kernel jumps between the two electrodes, the piston might be some distance from the top of the cylinder (this is usually described as degrees of crankshaft rotation).