B2434 Diagnostic Trouble Code

B2434 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 B2434 diagnostic trouble code may include:

Rich or lean exhaust
Fuel pressure too low
Engine surge
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Faulty IMRC actuator relay (if equipped)

Repair Processes :

Now, clear the codes and test-drive the vehicle to see if the code is reset. 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. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code B2434 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 B2434.

Fortunately, B2434 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B2434 Trouble Code For Specific Cars

B2434 Aero Type 30 ABS Outlet Valve Coil LR Circuit Failure
B2434 Alvis Ta21 Air Pressure Low Circuit Short to Gnd
B2434 Volkswagen Polo Rotor Calibration Fault
B2434 Ford E-250 Manifold Absolute Temperature Circuit High Input
B2434 Volvo 245
B2434 Ginetta G4 Output Circuit Check Signal Low
B2434 Mercedes-benz W196 Air Suspension LF Corner Down Timeout