How do you fix exhaust gas recirculation flow insufficient detected?

Use vacuum pump to open the EGR valve while monitoring the DPFE voltage and RPM engine. Clean the EGR valve and tubing to remove the deposits. Check the voltage at DPFE and compare to specified values, You can also refer to your repair manual for your specific model. Replace your DPFE sensor with high quality one.

Is it bad to drive with code P0401?

Hi There, Code P0401 relates to the EGR valve flow. When this code is triggered, the computer has detected that the flow is insufficient. Driving the car until next week will not cause any harm, although the vehicle may not run well.

What does error code P0401 mean?

Code P0401 Meaning This is likely due to faulty or clogged EGR valve or carbon buildup in the intake manifold or on the EGR temperature sensor.

What does the code p0401 mean on a Chevy?

P0401 CHEVROLET Meaning The Powertrain Control Module (PCM) tests the EGR system during deceleration by momentarily commanding the EGR valve open. The pressure in the intake manifold increases when the EGR valve is open.

Can a p0401 code be removed from an EGR valve?

  If you have a P0401 code stored in the computer and have an electronic EGR valve but do not have a scanner to test it, you can still remove it and check for carbon stuck in the pintial of the EGR valve and even if the pintail moves up and down like it should.

What’s the warranty on a 2000 Chevy Malibu?

Every 2000 Malibu under warranty is backed with the following services: i 2000 Chevrolet Malibu Owner’s Manual Litho in U.S.A. Part Number 22619478 A First Edition © Copyright General Motors Corporation 1999 All Rights Reserved ii Table of Contents

What causes a computer to flag a p0401 code?

The computer will flag your P0401 code in the computer when it recognizes that there is not enough exhaust gas going back through the intake chamber… or simply, a low flow which causes the computer to flag the P0401 code. How does your computer know how much exhaust gas is being burned if any? Different manufacturers do it differently.