Based on information from various sensors, the ECM can calculate the fuel amount to be injected. The fuel injector is a solenoid-operated valve and the fuel injection amount is controlled by length of injection time. The ECM controls each injector by grounding the control circuit. When the ECM energizes the injector by grounding the control circuit, the circuit voltage should be low (theoretically 0V) and the fuel is injected. When the ECM de-energizes the injector by opening control circuit, the fuel injector is closed and circuit voltage should momentarily peak, and then settle at system voltage.

Fuel Tank Pressure Sensor (FTPS). Repair procedures

Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Measure the output voltage of the FTPS. Specifica ...

Injector. Specifications

Specification Item Specification Coil Resistance (Ω) 1.18 ~ 1.31 [20°C(68°F)] ...

See also:

Canister Close Valve (CCV). Description and Operation
Description Canister Close Valve (CCV) is installed on the canister ventilation line. It seals evaporative emission control system by shutting the canister from the atmosphere when leakage d ...

Preparation Of Tools And Measuring Equipment
Be sure that all necessary tools and measuring equipment are available starting work. Special Tools Use special tools when they are required. Removal Of Parts First find th ...

Owner maintenance precautions
Improper or incomplete service may result in problems. This section gives instructions only for the maintenance items that are easy to perform. As explained earlier in this section, several procedu ...