Chrysler 2005 Crossfire SRT6 Service Manual page 2411

ZH
(P0455) EVAP SYSTEM LARGE LEAK (CONTINUED)
7.
FUEL TANK PRESSURE SENSOR OPERATION
Note: The fuel level must be below 85%, or the Tank Vent/Rollover Valves and the Fuel Tank Overfill Check
Valve will seal the tank.
Turn the ignition off.
Install the fuel filler cap adapter. Attach the fuel filler cap to the adapter.
Connect a hand-held vacuum pump to the fuel filler cap adapter.
Slowly apply vacuum while monitoring the fuel tank pressure sensor on the DRB III . Do not exceed 66 mm Hg (2
in. Hg) while performing this step.
Note: The fuel tank pressure sensor reads normally -1 hPa (-0.0145 psi). When the vacuum is applied and
330 mm Hg (1 in. Hg) is reached, the fuel tank pressure sensor should be approximately -5 hPa (-0.0725
psi). Once the vacuum has been released, the fuel tank pressure sensor should return to a normal reading.
Did the fuel tank pressure sensor operate as described above?
Yes >> Go To 8
No >> Replace the Fuel Level Sending Unit/Pressure Sensor. (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/
FUEL LEVEL SENDING UNIT / SENSOR - REMOVAL).
Perform POWERTRAIN VERIFICATION TEST - VER 2.
8.
INTERMITTENT CONDITION
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN. DO NOT
PUT YOUR HANDS NEAR THE PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
Review the DRB III Freeze Frame information. If possible, try to duplicate the conditions under which the DTC was
set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Note: A loose fuel filler cap could have caused this DTC to set. Make sure fuel filler cap is tight and in good
condition. Ensure the fuel filler cap meets OEM specifications.
Perform a visual and physical inspection of the entire Evaporative Emission system.
Check for the following conditions:
- Holes or cracks
- Loose seal points
- Evidence of damaged components
- Incorrect routing of hoses and tubes
- Fuel filler cap gasket seal
Were any of the above conditions found?
Yes >> Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No >> The condition that caused this symptom is currently not present. Inspect the related wiring harness for
a possible intermittent condition.
ENGINE - ELECTRICAL DIAGNOSTICS 9 - 487