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− − − − − − 01 02 01 S0X4AZ1K77100090451FAAT00 DTC P0451 ’01 Model: Special Tools Required YES NO YES NO 11-262 EVAP System DTC Troubleshooting (cont’d) FTP (LT GRN) SG3 (GRN/BLK) PCM CONNECTOR E (31P) FTP (LT GRN) SG3 (GRN/BLK) PCM CONNECTOR E (31P) A973X-041-XXXXX FTP Sensor Range/ Performance Problem Vacuum pump/gauge, 0 30 in.Hg A973X-041-XXXXX 1. Remove the fuel fill cap. 2. Turn the ignition switch ON (II). 3. Monitor the FTP sensor voltage with the HDS, or measure voltage between PCM connector Go to step 4. Replace the FTP sensor. 4. Turn the ignition switch OFF. 5. Disconnect the hose between the EVAP two way valve and the FTP sensor at the EVAP two way 6. Connect a vacuum pump to the open end of the hose. 7. Turn the ignition switch ON (II). 8. Monitor the FTP sensor voltage with the HDS, or measure voltage between PCM connector 9. The voltage should drop smoothly drop from about 2.5 V down to about 1.5 V. Stop applying vacuum Check for misrouted, leaking, or broken FTP sensor vacuum lines. If the vacuum lines are OK, Replace the FTP sensor. Wire side of female terminals Wire side of female terminals Is ther e about 2.5 V ? Does the voltage dr op to about 1.5 V and hold? 03/07/29 09:26:00 61S0X050_110_0262 |