answersLogoWhite

0


Best Answer

P1401 - DPF EGR Sensor Circuit High Voltage Detected The EGR monitor checks the DPFE sensor signal to the PCM for high voltage. The test fails when the average voltage to the PCM goes to a voltage greater than the maximum calibrated value.

Possible causes:

DPFE circuit open

VREF short to PWR

Damaged DPFE sensor

DPFE circuit short to PWR

SIGNAL RTN circuit open

Damaged PCM

Look at scan data stream for a reading greater than 4.5 volts with the key ON and engine OFF or running. This indicates a hard fault.

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is likely cause of code 1401 after DPFE sensor replacement and EGR cleanup?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Would an oxygen sensor cause a car to not start?

Possible, but not likely.


Will the throttle position sensor cause a PT Cruiser not to start?

It is possible but not likely.


Would a bad speed sensor cause The car to not shift gears in a 1996 Chevy cavalier?

The trans is electronically shifted so the sensor being bad is a likely cause.


Computer codes dodge b2500 van po73?

P0073 is Ambient air temp sensor high. Likely cause is the sensor itself.


What causes the speedometer to stop working in a 2000 Chrysler Concorde?

The transmission computer takes the output speed sensor signal and sends it to the cluster for the speedometer reading. The output speed sensor is a likely cause.The transmission computer takes the output speed sensor signal and sends it to the cluster for the speedometer reading. The output speed sensor is a likely cause.


What is the likely cause of code PO327 on inspection report?

Problem with Knock Sensor circuit #1


Why is there no fire to the spark plugs in a 1997 Sebring?

Check the distributor. That is the most likely cause, or the crankshaft sensor.


Can a bad gas cap cause code p0138?

Not likely. Code P0138 is------O2 Sensor Circuit High Voltage (Bank 1 Sensor 2).


What would cause a gas pedal to lose acceleration after starting the car?

It could be your MAF sensor. Mass air flow sensor that measures the air going into the intake. This could likely cause sluggish acceleration.


For a 1999 VW Passat 1.8T what is the likely cause of a water temperature gauge that frequently fluctuates between cold and normal and back and forth?

Most likely cause is a faulty coolant temperature sensor.


What is the likely cause OS error code P1130 in a 1999 Camry?

P1130: A/F Sensor Circuit Range/Performance (Bank 1 Sensor 1) (Toyota)


Will bad oxygen sensor cause rough idle?

Not likely but possible. I would suspect a leaking vacuum hose.