P217B Diagnostic Trouble Code

P217B is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a P217B diagnostic trouble code may include:

Fuel pressure too high
Diminished fuel efficiency
Rich or lean exhaust
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

Fuel with a large percentage of sulfur will clog the DPF quickly
The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
Faulty IMRC actuator relay (if equipped)

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Pull the connectors apart and carefully look at the terminals (the metal parts) inside the connectors.

Process Tips

Diagnostic trouble code P217B is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before P217B.

Fortunately, P217B is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P217B Trouble Code For Specific Cars

P217B Mercedes E 230 ABS Power Relay Coil Short Circuit To Battery
P217B Auto-union Dkw Aux Heater Fuel Pump Circuit Short to Ground
P217B Bmw X6 Column Reach Feedback Potentiometer Circuit Short to Ground
P217B Proton Savvy Fuel Tank Pressure Sensor Circuit Open
P217B Martin Aero Transmission 4-Wheel Drive Mode Select Open Circuit
P217B Isuzu Piazza
P217B Hyundai Hcd