Tuning

Ignition

1 article on ignition, covering 4 symptoms. Basis, stated on each: 1 general principles.

• What a spark plug can and cannot tell you

  The plug is the only part of a running engine you can hold in your hand, which is why it gets asked questions it cannot answer. Here is what it actually records, and the one thing that has to be true before it records anything.

  Bolt-on · 4 symptoms