Current Engine speed and nominal engine speed during catalyst heating is higher than threshold, PCM sets DTC P050A.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Monitoring the Actual Idle Speed Deviation From the Target Engine Speed | 1. Poor Connector Connection 2. Restricted Intake or Exhaust System 3. Vacuum Leaks 4. Defected Throttle Body |
Enable Conditions |
•
Catalyst heating - Engine speed increase active
•
Engine Coolant Temp. at start higher than 14℉(10℃) and lower than 91.4℉(33℃)
•
5 sec. after engine start
•
Vehicle speed lower than 1.9mph(3 km/h) | |
Threshold Value |
•
Deviation of Target RPM and Current RPM higher than 100 RPM(Engine speed too low) | |
Diagnostic Time |
•
20 sec. | |
Mil On Condition |
•
2 Driving Cycle |
