Tracker 2WD L4-1.6L VIN 6 (2000)
Fuel Injector: Description and Operation
System Voltage
The fuel injector is driven by the Powertrain Control Module (PCM). There is a delay between when the PCM signals the fuel injector ON and when the
injector actually opens and provides fuel. This delay is known as ineffective injection time and is part of the normal event of electrical flow through the
fuel injector solenoid coil.
Because ineffective injection time varies with system voltage, the PCM takes voltage readings and computes the required offset necessary for the proper
timing of the fuel injector signal.
