PCM sets DTC P0234 if the boost pressure is abnormally high.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Plausibility check | 1. Poor connector connection 2. Air leak in intake system (Turbocharger to ETC) 3. Restriction in intake system (Air filter to turbocharger) 4. Defected turbocharger 5. Defected RCV control solenoid valve 6. Defected boost pressure sensor |
Enable Conditions |
•
The difference between throttle pressure (2nd T-MAP) and atmospheric pressure is higher than 30 Kpa. | |
Threshold Value |
•
The difference between boost pressure and desired value is higher than 20kpa ~ 100kpa. | |
Diagnostic Time |
•
5 sec. | |
Mil On Condition |
•
2 Driving Cycle |
