The P0351 code means your engine control module (ECM) has detected a malfunction in the ignition coil “A” primary/secondary circuit, which corresponds to cylinder 1 on most engines. When this circuit ...

As long as there have been internal combustion engines, there has been a need for an ignition system to ignite the air and fuel mixture in the cylinders. From the earliest days of automotive ignitions ...

With the engine started and the ignition switch in the run position, a ballast resistor is introduced in the circuit. This resistor is designed to work in conjunction with the primary coil circuit to ...

No Ford engine project is complete without a properly functioning ignition system. This system has the important job of delivering the spark to the required cylinder at precisely the right time. Any ...

Automotive ignitions systems have seen many transitions over the years. Historically, the designs have matured from a magneto to today’s coil-over-spark plug designs. The progression follows the ...

Since 1914 auto makers have used the Kettering or inductive ignition system: a battery, transformer (coil), a cam-driven mechanical switch (breaker points), a distributor and spark plugs. The system ...