EVAP-Leak-Check Model
DTC P2227 (EVAP-Leak-Check Model)
DTC Detecting Condition and Trouble Area
Wiring Diagram
Refer to P0449 DTC P0449.
System Description
Barometric pressure is observed by EVAP leak check pressure sensor in EVAP leak check module.
DTC Confirmation Procedure
WARNING:
If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.
- Select a level road with no traffic to minimize the risk of accident.
- Perform the test extremely carefully.
- Perform the road test using 2 persons, a driver and an assistant.
NOTE:
If DTCs other than aimed DTC are previously detected in DTC confirmation procedure, be sure to troubleshoot DTC previously detected.
1) Start engine and warm up to normal operating temperature.
2) Drive vehicle at 1,000 - 4,000 rpm for 5 min. at 5th gear (M/T) or D range (A/T). (Keep throttle valve opening constantly in this step.)
DTC Troubleshooting
1.
Was "Engine and Emission Control System Check" performed?
YES -
Go to Step 2.
NO -
Go to Engine and Emission Control System Check Engine and Emission Control System Check.
2. EVAP leak check pressure sensor check
Check EVAP leak check pressure sensor for performance referring to "EVAP Leak Check Pressure Sensor (combine with BARO sensor) Inspection" under EVAP Leak Check Module Inspection EVAP Leak Check Module Inspection.
Is it in good condition?
YES -
Go to Step 3.
NO -
Replace EVAP leak check module.
3. EVAP system check
Check the following parts for clogging.
- EVAP canister
- EVAP canister air suction filter
- EVAP passage
- EVAP vent valve in EVAP leak check module
Are they in good condition?
YES -
Go to Step 4.
NO -
Clean, repair or replace defective parts.
4. EVAP leak check pressure sensor circuit check
Check EVAP leak check pressure sensor circuit referring to step 2 through 5 of EVAP-Leak-Check Model DTC P2228 / P2229 (EVAP-Leak-Check Model).
Is it in good condition?
YES -
Substitute a known-good ECM and recheck.
NO -
Repair or replace defective wire harness.