What tells a coil to fire?
So how does a coil actually fire a spark plug? When battery voltage from the ignition circuit, ignition module or PCM flows through the coil’s primary windings, the iron core becomes a strong electromagnet. The voltage then passes from the coil to the spark plug and creates a spark that ignites the air/fuel mixture.
What is an ignition coil igniter?
It is an ignition system component that is responsible for providing the signal for the ignition coils to fire, so that the spark can be produced for cylinder combustion to occur. In some systems the igniter is also responsible for advancing and retarding the engine’s timing.
When to replace the igniter in a Toyota?
But if your wires, wiring to ignition coil, coil itself and the dist signal generator, and the air gap of dist are within spec, then replace the igniter.
Why does my Toyota 4Runner have rust on it?
Frame Rust: Many third-gen 4Runner owners have experienced issues with unusual levels of frame/undercarriage rust, which can lead to suspension system failure. This problem shouldn’t be attributed to the SUV’s age but rather the way its frame is constructed, which allows moisture to enter inside the frame and rust it out.
Why does my Toyota 4Runner dashboard keep melting?
Melting Dashboard: Even though Toyota extended dashboard warranty coverage for 2003-2005 4Runners only, this problem affects all the 4Runners in this generation. This happens when there’s excessive heat and humidity, and it can create a dangerous glare from the sun.
Where does the spark signal come from on a Toyota igniter?
The igniter receives the Ne (crankshaft position) signal from the distributor’s signal coil (sometimes called the “Hall Effect sensor”) which it uses to trigger spark during cranking and initial running. Ne is also passed through the igniter to the ecu, which uses it to determine base timing.