billcucc
Member
- Joined
- December 12, 2010
- Messages
- 16
- Reaction score
- 0
- Location
- South West Oregon
- City, State
- Medfod, Oregon
- Year, Model & Trim Level
- 1998 ranger 4WD
I have searched for this code in several places. The answers range checking O2 sensor, to replace gas cap.
Seems to me that this might to be what P1401 mean DPFE Sensor Circuit High Voltage Detected.
I checked the voltage to the egr solenoid, it is good.
I tested the egr valve, it working and holds the vacuum.
I checked the DPEF voltages.
DPFE signal: 1.2 v at Idle, 4.5v with vacuum at valve
Refernce voltage: 5.1v
Ground return: 14.4v
Are these voltages too high?
Any other reason for P1401 code?
Seems to me that this might to be what P1401 mean DPFE Sensor Circuit High Voltage Detected.
I checked the voltage to the egr solenoid, it is good.
I tested the egr valve, it working and holds the vacuum.
I checked the DPEF voltages.
DPFE signal: 1.2 v at Idle, 4.5v with vacuum at valve
Refernce voltage: 5.1v
Ground return: 14.4v
Are these voltages too high?
Any other reason for P1401 code?
