B1147 Volvo 144 OBD Code

OBD/2 B1147 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.

Circuit High Input codes like B1147 are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.

B1147 Volvo 144 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine B1147 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 servo motor potentiometer airintake right circuit short to battery 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 servo motor potentiometer airintake right circuit short to battery.

Common Causes of Volvo 144 B1147 OBD2 Code

A common cause of code B1147 is the failure of Servo Motor Potentiometer Airintake Right Circuit Short To Battery, but there are several other possible causes as well, such as ;

Dirty Oil
Exhaust gas leaks
Faulty Intake Valve Timing Control Solenoid Valve
Incorrect Positive Crankcase Ventilation (PCV) hose connection

B1147 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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B1147 Volvo 144 OBD Code

B1147 Volvo 144 Error Code Repair Process :

Common Causes of Volvo 144 B1147 OBD2 Code

B1147 code for other Volvo cars