What are engine fault codes?

What are engine fault codes?

Diagnostic Trouble Codes, also known as engine fault codes, are five-digit codes that identify a particular problem in the car. These codes are displayed on the scanning tool when it’s connected to the OBD system. The five-digit DTC includes one letter usually followed by four numbers (e.g. P1234).

How do I clear a permanent fault code?

The only way to clear a PDTC is to fix the underlying problem with the vehicle that originally caused the PDTC and its corresponding DTC to set, and then allow the vehicle sufficient drive time to re-run the monitor that identified the problem in the first place.

What causes P1326?

Error code P1326 occurs due to vibrations indicating excessive connecting rod bearing wear. You can easily detect them using the KSDS (Knock Sensor Detection System). Since severe engine damage and failure are possible, this device notifies the driver about a preceding phase of bearing wear.

How do you fix fuel too rich code p0172?

Here are ways to fix P0172 code fuel too rich: • Cleaning the mass air flow sensor and oxygen sensors. • Replacing the spark plugs. • Replacing the coolant temperature sensor or thermostat. • Repairing your vacuum leaks. • Replacing a damaged fuel regulator, fuel pump, or fuel injector.

What does the p0172 code on the ECM mean?

Too much fuel and not enough air is considered rich – too much air and not enough fuel is considered lean. The P0172 code indicates that the ECM/PCM is or has detected a rich condition.

What causes the p0172 O2 sensor to fail?

A saturated carbon canister due to packing the fuel tank. Faulty O2 sensor (but O2 sensors more commonly fail by reading lean, not rich). A clogged air filter can cause code P0172.

What does the p0172 code on a Ford F150 mean?

The meaning of the P0172 trouble code remains the same for Ford vehicles, just as it does for any other models. If you see this can after plugging in your OBD II scanner, then it means that the ECU, also known as the engine control unit, has received a signal that the fuel has become too rich in the bank 1 of the engine.