B1297 Diagnostic Trouble Code

B1297 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 B1297 diagnostic trouble code may include:

Fuel pressure too low
Rich or lean exhaust
Diminished fuel efficiency
Reduction in engine performance, especially at low RPM levels

Possible Causes :

A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
Some aftermarket accessories and performance modifications
Faulty IMRC actuator/sensor

Repair Processes :

Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code B1297 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 B1297.

Fortunately, B1297 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1297 Trouble Code For Specific Cars

B1297 Faralli & Mazzanti Antas Injector Circuit Open / Shorted - Cylinder #1
B1297 Autobianchi A112 Aux Heater Coolant Sensor Circuit Open
B1297 Smart Cabrio Lamp ABS Warning Output Circuit Open
B1297 Mercedes A 140 AAI Circuit Malfunction
B1297 Dacia Nova Fuel Temperature Sensor A Circuit Performance
B1297 Hyundai Getz
B1297 Farboud Gts Injector Circuit Open / Shorted - Cylinder #3