C3498 Diagnostic Trouble Code

C3498 is a kind of OBD-II Diagnostic C-Chassis 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 C3498 diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
Dirty air cleaner element Damaged DPF

Repair Processes :

If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve. 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.

Process Tips

Diagnostic trouble code C3498 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 C3498.

Fortunately, C3498 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C3498 Trouble Code For Specific Cars

C3498 Rover 2600 Ignition Coil - Cylinder 5 - Early Activation Fault
C3498 Skoda Praktik Knock Sensor 2 Circuit Range/Performance (Bank )
C3498 Mitsubishi Space Runner Aux Heater Overheat Sensor Circuit Short to Ground
C3498 Volkswagen 1303 Rear Cargo Door Set Switch Stuck (Short to Ground)
C3498 Hummer H2 Right Tail Lamp Circuit Failure
C3498 Plymouth Special Excessive Injection Control Pressure
C3498 Maserati Quattroporte Vi Transmission Fluid Temperature Sensor Circuit Low Input