B0098 Diagnostic Trouble Code

B0098 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 B0098 diagnostic trouble code may include:

Engine surge
Blown fuse (if applicable)
Lack of power
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed. 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. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed.

Process Tips

Diagnostic trouble code B0098 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 B0098.

Fortunately, B0098 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B0098 Trouble Code For Specific Cars

B0098 Toyota Sports Passenger Door Ajar Circuit Failure
B0098 Nissan 350z CID High
B0098 Dodge Demon Ignition Coil L Primary/Secondary Circuit Malfunction
B0098 Paykan 1600 Driver Window Down Current Sense Low Circuit Failure
B0098 Gnome 3 Park Switch Indicates Park with Vehicle Moving
B0098 Peugeot 304 EGI Mini - MAF Failed Short Circuit
B0098 Austin A135 Autolamp Delay Decrease Circuit Short To Battery