B17E9 Diagnostic Trouble Code

B17E9 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 B17E9 diagnostic trouble code may include:

Carbon Buildup on O2 Sensor
Malfunction Indicator Lamp (MIL) illuminated
Hesitation upon acceleration
Engine surge

Possible Causes :

Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
An air leak forward of the DPF will change the sensor readings resulting in the code
Some aftermarket accessories and performance modifications

Repair Processes :

Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness.

Process Tips

Diagnostic trouble code B17E9 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 B17E9.

Fortunately, B17E9 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B17E9 Trouble Code For Specific Cars

B17E9 Ats Gts Air Temperature Internal Sensor Circuit Short To Ground
B17E9 Plymouth Sundance Exhaust Gas Recirculation (EGR) Position Sensor Performance
B17E9 Volvo 145
B17E9 Datsun 120 Heater Coolant Temp sensor circuit Open
B17E9 Lada Granta Shift Solenoid B Control Circuit High
B17E9 Toyota Model F Output Circuit Check Signal Low
B17E9 Toyota Fxs Oil Change Lamp Circuit Short To Ground