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The Evaporative Emission Control System is designed to prevent fuel vapors from escaping into the atmosphere.
(The ORVR system is designed to allow the vapors from the fuel tank to be loaded into a canister while refueling at the gas station, preventing the escape of fuel vapors into the atmosphere.)
Canister
Fuel vapors generated inside the fuel tank are absorbed and stored in the onboard canister. When the engine is running, the fuel vapors absorbed in the canister are drawn into the engine intake manifold through the purge control solenoid valve.
Purge Control Solenoid Valve (PCSV)
The purge control solenoid valve is controlled by the Engine Control Module (ECM); when the engine coolant temperature is low during idling, the PCSV closes so that evaporated fuel is not taken into the engine. After the engine warms-up during ordinary driving, the PCSV opens to introduce evaporated fuel to the engine.
8LR Brake Control Solenoid Valve Repair procedures
Inspection
1.
Turn ignition switch OFF.
2.
Disconnect the E Module connector.
3.
Measure resistance between sensor signal terminal and sensor ground terminal.
4.
Check that the res ...
Compressor oil Repair procedures
Oil Specification
1.
The HFC-134a system requires synthetic (PAG) compressor oil
whereas the R-12 system requires mineral compressor oil. The two oils
must never be mixed.
2.
Compressor (P ...
Troubleshooting
Troubleshooting
Problem Symptoms Table
Use the table below to help you find the cause of the
problem. The numbers indicate the priority of the like cause of the
problem. Check each part in or ...