Conditions For Setting The DTC
Following conditions must be met for DTC diagnostic test to run:
- No TP sensor, MAF sensor, ECT sensor, or fuel system DTCs are present.
- Engine speed is steady, changing less than 100 RPM.
- Engine speed is between 1000 and 4000 RPM.
- Throttle position is steady, throttle angle changes less than 3 percent.
- EGR flow rate is steady, changing less than 4 percent.
- No change in A/C clutch or Power Steering Pressure (PSP) switch status.
- Engine coolant temperature is greater than 14°F (-10°C).
- MAP value is steady, changing less than 5 kPa.
- The MAP value must vary for a total of 12.5 seconds over a 25 second period of time that the samples were monitored.