What is the EP sensor?
Some vehicles (mainly those with turbocharged engines) have an exhaust pressure sensor (EP). This sensor does exactly what the name implies – it measures exhaust backpressure. This information is sent to the vehicle’s computer, the powertrain control module (PCM).
What causes code P0470?
What the P0470 code means. This code means that the signal being provided by the exhaust pressure sensor isn’t matching the ambient air pressure or manifold pressure. It’s associated with code P0471.
Can exhaust back pressure damage an engine?
Abstract: Exhaust system components such as mufflers and exhaust aftertreatment devices are a source of engine exhaust back pressure. Increased back pressure levels can cause increased emissions, increased fuel consumption, and can negatively affect engine performance.
How do I fix code P0470?
What repairs can fix the P0470 code?
- As we covered above, the big one is replacing the back pressure sensor.
- Otherwise, the sensor and its associated circuits will need to be tested to make sure the former isn’t malfunctioning because of the latter.
What does an exhaust pressure sensor do?
The Exhaust Gas Pressure Sensor is a Differential Sensor measuring the pressure difference between gas in the intake and the outtake of the Particulate Filter. The outtake may be directly set to ambient pressure depending on the model.
What causes exhaust back pressure?
Definition. Engine exhaust back pressure is defined as the exhaust gas pressure that is produced by the engine to overcome the hydraulic resistance of the exhaust system in order to discharge the gases into the atmosphere.
What causes a p0470 code on a Toyota Corolla?
There are five main issues that could be behind a P0470 code: The exhaust back pressure sensor is faulty. The exhaust back pressure sensor harness is shorted or completely open. There is a poor electrical connection with the exhaust back pressure sensor circuit. The tube that runs from the pressure sensor to the exhaust manifold is blocked.
What’s the p0470 code Ford F150?
P0470 is a diagnostic trouble code (DTC) for “Exhaust Pressure Sensor Malfunction”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
What to do if your Honda engine code is P0420?
STEP 1: USE FIXD TO ENSURE NO OTHER ENGINE CODES ARE PRESENT. Use FIXD to scan your Honda to verify P0420 is the only code present. If other codes are present, they must be addressed first. STEP 2: EXAMINE THE EXHAUST SYSTEM FOR DAMAGE AND LEAKS.