Note:
- When operating a car in high mountains (at high altitude) or driving with a cold engine, the ignition timing advances slightly to ensure optimum engine performance. In addition, when knocking occurs, the ignition timing is gradually reduced until knocking stops.
- When the automatic transmission shifts gears, the ignition timing is reduced to reduce engine torque, thus eliminating vehicle jolt when shifting gears.
The ignition system is non-contact, it contains:
- (Engines 2.0L/2.4L) 2 ignition coils for cylinders #1 and #4 and for cylinders #2 and #3 respectively.
- (2.7L engine) 3 ignition coils for cylinders #1 and #4, #2 and #5 and for cylinders #3 and #6 respectively.
Power transistors are built into the electronic engine control unit.
The ignition timing changes dynamically according to the engine operating mode (crankshaft speed, load, engine thermal state, etc., determined by signals from various sensors) and data on the optimal ignition timing (stored in the memory of the electronic engine control unit).
Note: Procedures for removing, installing, and inspecting spark plugs and high voltage spark plug wires are found in chapter "Maintenance and general inspection and adjustment procedures".