B3878 Buick Special DTC Code

Buick Special Engine Specifications:

Engine Type :	Single Cylinder Engine
Cylinder Type :	Opposite Piston Engine
Engine Air Intake Process :	Supercharged Engine

Your Buick Special engine control system detects a problem, the computer stores the diagnostic trouble code B3878 in its memory. To figure out what is wrong with your vehicle you must first extract the B3878 DTC For Buick Special.

Do you have fresh, clean fuel in the tank? If it's empty, fill it up and go! If it's full, check B3878 Buick Special that the fuel shut-off valve is open and that it is clean. Stale fuel, dirt and debris are the most common cause of outdoor power equipment not starting properly. If you store equipment with untreated gas in the tank, it can lead to engine damage.

B3878 Buick Special DTC Meaning

B	Body Code - Problem is antilock brake system, electronic suspension and steering systems.
3	SAE - Generic
8	Accelerator Pedal Position (APP) Sensor 1 Performance
7	Exhaust Gas Recirculation System Valve 1
8	Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit

If your vehicle failed a B3878 Buick Special test and the B3878 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses B3878 a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look B3878 DTC For Buick Special: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.