What does the code P0404 mean?

When P0404 is triggered, it means that the PCM has been told that the valve is performing in a way that is outside of its specified parameters. More specifically, the PCM has been told that the valve is closed when it should be open, or vice-versa.

Can you drive with a P0404 code?

Short term no worries. Long term it can effect fuel economy and increase undesirable tailpipe emissions. EGR can also be used to lower internal cylinder temps which can help prolong engine life.

Can I drive my car with a bad EGR valve?

it shouldn’t cause any other problems UNLESS it is completely stuck open. (only seen this once in 5 years) a stuck open EGR valve can cause stalling at idle, no start, rough idle. for the most part, it is safe to drive without limitations.

Can I drive with a P0404 code?

How can I tell if my EGR valve is bad?

EGR valve symptoms can vary, however, the most common symptoms of a faulty EGR valve are explored below:

Your engine has a rough idle.
Your car has poor performance.
You have increased fuel consumption.
Your car frequently stalls when idling.
You can smell fuel.
Your engine management light stays on.

What is a exhaust gas recirculation sensor?

The exhaust gas recirculation (EGR) system is designed to lower combustion temperatures and reduce oxides of nitrogen emissions (NOx). Some vehicles use an EGR temperature sensor to determine EGR operation. This information is used by the powertrain control module (PCM) for proper EGR control.

Can u drive with a bad EGR valve?

Can I drive with a bad EGR valve? Technically, you can drive your vehicle with a bad EGR valve, but your vehicle will run rough, shake at idle, and a check engine light will be illuminated. You might also hear popping sounds while driving down the road.

What happens if you don’t replace EGR valve?

A faulty EGR valve can cause problems with the flow and operation of the EGR system leading to performance issues including a reduction in power, reduced acceleration and decreased fuel efficiency. EGR valves can become stuck ‘open’ or ‘closed’ due to a build-up of soot particles, carbon deposits and dirt from fuel.

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 does the code P3400 mean on a car?

The cylinder deactivation system malfunctioning is a pretty confusing concept. So, what does the code P3400 mean? You probably know that the cylinders are the part of the engine that actually creates power. If all the cylinders are running, then it means the engine is running at full power.

When to use the P3400 cylinder deactivation code?

If a situation arises in which the PCM cannot make the cylinder deactivation system operational (for engine bank one), or if the PCM detects that the cylinder deactivation system has become inadvertently operational, a code P3400 will be stored and a malfunction indicator lamp (MIL) may be illuminated. Cylinder Deactivation Engine:

Why does my car have a code p0404?

Code P0404 activates when the car computer detects erratic EGR valve performance. It could mean that your EGR valve isn’t doing what it’s supposed to do in specified parameters such as being fully open when it should only be partially open. This can be bad as, for example, too much exhaust gas can make it difficult for the engine to idle.

What causes the P3400 code to set on an odyssey?

Low oil level can cause this P3400 code to set. A loose gas cap and/or dirty cabin air filter WILL NOT cause this P3400 code to set. The most obvious symptom was that the Odyssey was operating in 3 cylinder mode nearly ALL the time. There was a significant drop in power. Heres why…….