B1817 Diagnostic Trouble Code

B1817 is a kind of OBD-II Diagnostic B-Body 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 B1817 diagnostic trouble code may include:

Poor acceleration
Cherry red hot catalytic converter
Possible spark knock (detonation / pre-ignition)
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.

Process Tips

Diagnostic trouble code B1817 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 B1817.

Fortunately, B1817 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1817 Trouble Code For Specific Cars

B1817 Chevrolet Malibu 7 EEPROM Malfunction
B1817 Lotus 2-eleven Torque Converter Clutch Inductive Signature Malfunction
B1817 Ssangyong Korando LAMP DOME OUTPUT Circuit Short to Ground
B1817 Ferrari 125 Injector Circuit Open / Shorted - Cylinder #5
B1817 Lexus Rx 300 TFT Sensor In Range Failure High
B1817 Opel Signum Door Driver Key Cylinder Switch Failure
B1817 Citroen 10 Hp Fan Control Circuit Malfunction