What does error code P0404 mean?

What does error code P0404 mean?

engine exhaust gas recirculation
P0404 is an OBD-II generic code that the engine control module (ECM) detected the engine exhaust gas recirculation (EGR) valve or sensor is out of specification range or its performance has gone out of specification parameters.

What does the OBD code p0404 mean?

What the P0404 code means. P0404 is an OBD-II generic code that the engine control module (ECM) detected the engine exhaust gas recirculation (EGR) valve or sensor is out of specification range or its performance has gone out of specification parameters.

What kind of EGR valve does a Volkswagen p0404 have?

If you have a P0404 Volkswagen, then the EGR valve is likely an electrically controlled EGR valve instead of a vacuum controlled EGR valve. Also, the valve will usually have a feedback system built into it that informs the PCM (Powertrain Control Module) what position the valve is in; open, closed, or somewhere in between.

What causes a Volkswagen p0404 DTC to malfunction?

There may be no symptoms of a P0404 Volkswagen DTC other than the MIL (malfunction indicator lamp) or check engine light. However, Exhaust Gas Recirculation systems are inherently problematic due to carbon buildup in the intake manifold, etc. This normal buildup can lodge in an EGR valve, holding it open when it should be closed.

What does the p0403 code on a PCM mean?

One of them is the P0403 code. The code P0403 activates when the PCM detects that the desired and actual states of the EGR control circuit do not match during operation. What Does the P0403 Code Mean? Diagnostic trouble code (DTC) P0403 stands for “Exhaust Gas Recirculation “A” Control Circuit.”

What does the OBD fault code p0404 mean?

We recommend Torque Pro. P0404 is a generic OBD II fault code that indicates that there is an issue with the Exhaust Gas Recirculation (EGR) circuit. The Engine Control Module (ECM) has detected that the EGR circuit is either out of range or not functioning properly.

What does p0404 mean on an EGR valve?

Code P0404 usually indicates that there is a carbon build-up somewhere in the lines, or on other occasions, a bad EGR valve. Increased nitrogen oxide emission may indicate a failing EGR valve.

What is the p0404 exhaust gas recirculation circuit range?

Hello, I have a 1998 Sonoma SLS 4.3 auto, 4×4 with 150,000kms, I have been recently been having issues with the truck surging, revving up & down slightly & is very sluggish. I put it on a 3130 scanner & the code that came up was P0404 Exhaust Gas Recirculation Control Circuit Range Per…

Are there any symptoms of a p0404 DTC?

There may be no symptoms of a P0404 DTC other than the MIL (malfunction indicator lamp) or check engine light. However, Exhaust Gas Recirculation systems are inherently problematic due to carbon buildup in the intake manifold, etc.