B3037 Diagnostic Trouble Code

B3037 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 B3037 diagnostic trouble code may include:

Faulty or damaged wiring
The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
Poor fuel economy
Diminished fuel efficiency

Possible Causes :

The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
Defective ECU strategies or components will prevent proper regeneration
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.

Repair Processes :

Look at the plug wires to make sure they are not burnt or laying on the exhaust. 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. 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.

Process Tips

Diagnostic trouble code B3037 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 B3037.

Fortunately, B3037 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B3037 Trouble Code For Specific Cars

B3037 Vauxhall Monaro Pressure Control Solenoid B Intermittent
B3037 Mitsubishi Canter Audio Navigation Unit is Not Responding
B3037 Nissan C 52 Climate Control Temperature Differential Circuit Open
B3037 Pininfarina Argento Engine RPM Or Speed Limiter Reached
B3037 Isdera 036
B3037 Austro-daimler Ad Aux Heater Cool Down Time Exceeded (may be con to a453-5 )
B3037 Secma F16 Insufficient Coolant Temperature for Closed Loop Fuel Control