What does the error code p0472 mean on a car?
Error code P0472 means there’s a problem with the vehicle’s electrical circuit, though the source of the problem can be either electrical or mechanical failure. This problem stems from exhaust back pressure sensor not working properly.
What should my DTC p0473 pressure sensor read?
Check your particular repair manual for data specific to your vehicle. Keep in mind that DTC P0473 generally describes a short circuit. Scan Tool Diagnostics – KOEO (key on engine off), set the scan tool set to display EPS and MAP (manifold absolute pressure). Both sensors should read zero relative pressure.
What causes EPs to fail on DTC p0473?
Depending on year, make, and model, DTC P0473 may have number of causes. Here are some of the most common. EPS Failure – Given its exposure to the heat of exhaust, it should come as no surprise that the EPS can fail. As long as circuit problems are ruled out, replacing the EPS usually results in a fix.
What is the code for the exhaust pressure sensor?
This code is strictly concerned about the incoming signal from the exhaust pressure sensor not matching intake manifold pressure or ambient air pressure at key on. This is strictly an electrical circuit fault. Code P0471 may also be present at the same time as the P0472.
What do I need to know about DTC p0473?
Keep in mind that DTC P0473 generally describes a short circuit. Scan Tool Diagnostics – KOEO (key on engine off), set the scan tool set to display EPS and MAP (manifold absolute pressure). Both sensors should read zero relative pressure. If EPS and MAP read correctly, clear codes and try again.
What are the symptoms of a p0472 exhaust pressure sensor?
P0474 Exhaust Pressure Sensor “A” Circuit Intermittent Symptoms of a P0472 engine code may include: Unable to perform manual regeneration – burn off the soot out of the particulate filter. Looks like a catalytic converter but has temp sensors and pressure sensor probes inserted into it.
What’s the difference between p0472 and P0 471?
Code P0471 may also be present at the same time as the P0472. The main difference between these two codes is P0472 is only electrical while P0471 can be the result of a mechanical or electrical fault.
This code is strictly concerned about the incoming signal from the exhaust pressure sensor not matching intake manifold pressure or ambient air pressure at key on. This is strictly an electrical circuit fault. Code P0471 may also be present at the same time as the P0472.