What causes the p0404 OBD-II trouble code?

All our repairs are backed by our 12-month / 12,000-mile warranty. 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 causes the P0404 code?

Can a p0404 engine have too much EGR?

(Too much EGR and the engine won’t idle). If you have a P0404, then the EGR valve is likely an electrically controlled EGR valve instead of a vacuum controlled EGR valve.

Is the p0404 valve on my Malibu gone?

I have a 2002 Chevy Malibu LS with the 3.1L V6 engine. I had a p0404 code and when I did my tune-up recently, I went ahead and replaced the EGR valve. However, after two days of normal driving (approx. 70mi each day), the code has not gone away.

How much does it cost to repair a p0404 Chevy?

Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost of diagnosing the P0404 CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

(Too much EGR and the engine won’t idle). If you have a P0404, then the EGR valve is likely an electrically controlled EGR valve instead of a vacuum controlled EGR valve.

What does trouble code p0446 mean on a Chevy Tahoe?

This trouble code references a number that is given to you when you plug your Tahoe into a OBDII scanner. P0446 Indicates that there is a fault in the evaporative emission control system. It often appears with other codes, such as P0420, P0441, or P0440. P0446 is normally not an immediate threat to the drive-ability of your vehicle.

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.

What is the trouble code on my Chevy Tahoe?

P0446 Chevy Tahoe. August 7, 2018. One of the most common trouble codes with the Chevy Tahoe is the P0446 code. This trouble code references a number that is given to you when you plug your Tahoe into a OBDII scanner.

What kind of EGR valve does a p0404 have?

If you have a P0404, 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 makes a Chrysler Town and Country p0404 go bad?

While there are several issues that can throw the P0404 code in the Town and Country, the most common issue is either going to be carbon buildup on the EGR valve, the EGR valve itself (going bad), or wiring issues. Most of the time, the only symptom of P0404 is going to be the service engine soon light itself.

What causes the p0404 code on the EGR?

What causes the P0404 code? 1 The ECM monitors the EGR position with a sensor mounted on top of the EGR valve and the valve was out of a set position when the EGR was commanded 2 The EGR valve movement should be smooth without jerking or the ECM sets the code. 3 The EGR sensor went above upper limits when the EGR was commanded open by the ECM.

What does code p0284 mean on Ford engine?

P0284 Ford Description. Code P0284 is triggered when the Engine Control Module (ECM) detects that the acceleration rate of the crankshaft for Cylinder 8 was less than a calibrated amount. During normal conditions, the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.

What does p0404 mean on an EGR sensor?

Often times code P0404 does not actually indicate that there is something wrong with the EGR valve itself, but actually that the EGR sensor is telling your PCM that the proper amount of EGR needed to flow back into your cylinders and cool them is not present.

What are symptoms of the p0266 OBD-II trouble code?

Damaged wiring or connectors associated with the fuel injector circuit on the number 2 cylinder may be present. A faulty or restricted fuel injector on the number 2 cylinder may exist. The powertrain control module could be malfunctioning. What are the symptoms of the P0266 code?

What does the p0404 Ford engine code mean?

P0404 FORD Meaning Early Exhaust Gas Recirculation (EGR) systems component s include and EGR Valve, and Engine Control Μodule (ECΜ) Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum Μodulator.

What are Ford PowerStroke OBDII diagnostic trouble codes?

Ford Powerstroke Diesel DTC OBDII Diagnostic Trouble Codes- Powertrain P Codes Click here for “B” (Body Electronics) codes. Click here for “C” (Chasis) codes. OBDII Theory & Operation (PDF file from Motorcraft web site for model year 2000) Fault Code Condition Description Probable Causes P0107 Barometric pressure sensor circuit low input