B2871 Chevrolet Trailblazer 2 OBD Code

OBD/2 B2871 error code description and symptoms.

Catalytic converters must be warm before they can work properly. On a cold start the PCM provides a rich mixture to keep the cold engine running.
All that extra fuel goes into the catalytic converter. But the exhaust isn't very hot, because, ah, the engine is pretty cold. GM has employed several strategies to fire up the catalytic converter quicker and reduce cold start emissions. One way is to use a secondary air pump that pumps outside air directly into the catalytic converter.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code B2871, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code B2871 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

B2871 Chevrolet Trailblazer 2 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine B2871 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If timing reference high resolution signal b intermittent/erratic pulses so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the timing reference high resolution signal b intermittent/erratic pulses.

Common Causes of Chevrolet Trailblazer 2 B2871 OBD2 Code

A common cause of code B2871 is the failure of Timing Reference High Resolution Signal B Intermittent/Erratic Pulses, but there are several other possible causes as well, such as ;

Dirty Oil
EVAP canister or fuel tank leaks
Faulty Intake Valve Timing Control Solenoid Valve
Camshaft advance mechanism binding (VCT unit)

B2871 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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B2871 Chevrolet Trailblazer 2 OBD Code

B2871 Chevrolet Trailblazer 2 Error Code Repair Process :

Common Causes of Chevrolet Trailblazer 2 B2871 OBD2 Code

B2871 code for other Chevrolet cars