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Emission Control System Evaporative Emission (EVAP) Controls (cont'd) Does the voltage drop to 1.5 V and hold at least 20 seconds? NO Check the EVAP canister purge 1. Turn the ignition switch OFF. 2. Disconnect the Purge line hose from the EVAP canister 3. Turn the ignition switch ON (ll). 4. While monitoring the FTP Sensor voltage with the suring voltage between PCM 5. Continue to pump vacuum until that voltage drops to vacuum pump has no leak. 6. Monitor that voltage for 20 seconds. Does the voltage drop to 1.5 V and holds at least 20 seconds? Inspect the fuel tank vapor vent PURGE CAP VACUUM PUMP/GAUGE, 0 - 30 in.Hg PCM CONNECTOR D (22P) Inspect the EVAP canister purge they are OK, do the EVAP two ). Wire side of female terminals Replace the EVAP canister. NO YES YES Main Menu Table of Contents |