B208B Porsche 912 OBD Code

OBD/2 B208B error code description and symptoms.

Low Speed Fuel Pump Primary Circuit Malfunction The PCM monitors the low speed fuel pump (LFP) primary circuit output from the PCM.
The test fails if: When the LFP circuit is commanded on (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is commanded off, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage coming through the low speed fuel pump relay coil to the LFP circuit). Open or shorted low fuel pump (LFP) circuit Open VPWR to low speed fuel pump relay Damaged low speed fuel pump relay Damaged PCM An open circuit or short to ground can only be detected with the low speed fuel pump.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

B208B Porsche 912 Error Code Repair Process :

If your vehicle failed a B208B test and the B208B 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 heater blower relay circuit failure 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 heater blower relay circuit failure: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

Difficulty Level (Easy)

Repair Time (20 Min.)

Cost Prediction : $ 20-50

Common Causes of Porsche 912 B208B OBD2 Code

A common cause of code B208B is the failure of Heater Blower Relay Circuit Failure, but there are several other possible causes as well, such as ;

• EVAP canister or fuel tank leaks
• Faulty starter motor
• Exhaust tube
• Faulty front heated oxygen sensor

B208B 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.

B208B code for other Porsche cars

You can view according B208B DTC for your car model. We selected several models to see obd2 solutions click and view it.

• B208B Porsche 1300
• B208B Porsche 3400
• B208B Porsche 356
• B208B Porsche 550
• B208B Porsche 718
• B208B Porsche 804
• B208B Porsche 901
• B208B Porsche 904
• B208B Porsche 906
• B208B Porsche 907
• B208B Porsche 908
• B208B Porsche 910
• B208B Porsche 911
• B208B Porsche 911 Type 991
• B208B Porsche 911 Type 996
• B208B Porsche 911 Type 997
• B208B Porsche 914
• B208B Porsche 917
• B208B Porsche 924
• B208B Porsche 928
• B208B Porsche 930
• B208B Porsche 931
• B208B Porsche 935
• B208B Porsche 936
• B208B Porsche 937
• B208B Porsche 944
• B208B Porsche 959
• B208B Porsche 962
• B208B Porsche 964
• B208B Porsche 965
• B208B Porsche 968
• B208B Porsche 986
• B208B Porsche 993
• B208B Porsche 996
• B208B Porsche Boxster
• B208B Porsche Boxster Type 981
• B208B Porsche Boxster Type 986
• B208B Porsche Boxster Type 987
• B208B Porsche Carrera Gt
• B208B Porsche Cayenne
• B208B Porsche Cayenne Type 92a
• B208B Porsche Cayenne Type 9pa
• B208B Porsche Cayman
• B208B Porsche Cayman Type 718
• B208B Porsche Cayman Type 981
• B208B Porsche Cayman Type 987
• B208B Porsche Coupe
• B208B Porsche Dp
• B208B Porsche Gt
• B208B Porsche Gt2
• B208B Porsche Gt3
• B208B Porsche Karisma
• B208B Porsche Kremer
• B208B Porsche Macan Type 95b
• B208B Porsche Mega
• B208B Porsche Panamera Type 970
• B208B Porsche Panamericana
• B208B Porsche Rsk
• B208B Porsche Tapiro

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