B0798 Porsche Cayman Type 981 OBD Code

OBD/2 B0798 error code description and symptoms.

Engine Coolant Temperature (ECT) Circuit High Input Indicates the sensor signal is greater than Self-Test maximum. The ECT sensor maximum is 4.6 volts or -50 C (-58 F). Note on some vehicles that are not equipped with an ECT sensor, CHT can be used and can set this DTC. Open circuit in harness Sensor signal short to power Damaged PCM Improper harness connection Damaged sensor ECT V PID reading greater than 4.6 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault.

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

B0798 Porsche Cayman Type 981 Error Code Repair Process :

OBD B0798 code and tailpipe testing are two different approaches to identify vehicles in need of repair. The OBD system looks for broken or malfunctioning emissions control components and throttle position sensor disagreement btwn sensors, while tailpipe tests sample a vehicle's exhaust to see if it is above or below certain prescribed limits. Given the robust nature of today's emissions control components, it is entirely possible for an individual component to B0798 malfunction without leading to an immediate increase in emissions at the tailpipe. In such cases, other components (like the catalyst) can temporarily compensate for the part that is broken however, these other components can only do double duty for so long before they, too, begin to malfunction. In addition, OBD also monitors for B0798 and other malfunctions in the fuel system problems that traditional tailpipe tests were not designed to identify. Most state and local areas also include a gas cap pressure test as part of an emission inspection.

Difficulty Level (Easy)

Repair Time (20 Min.)

Cost Prediction : $ 50-100

Common Causes of Porsche Cayman Type 981 B0798 OBD2 Code

A common cause of code B0798 is the failure of Throttle Position Sensor Disagreement btwn Sensors, but there are several other possible causes as well, such as ;

• Engine Control Module (ECM)
• Faulty Crankshaft Position Sensor (POS)
• Fuel filler cap remains open or fails to close
• Variable Valve Timing (VVT) circuit is open or shorted

B0798 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.

B0798 code for other Porsche cars

You can view according B0798 DTC for your car model. We selected several models to see obd2 solutions click and view it.

• B0798 Porsche 1300
• B0798 Porsche 3400
• B0798 Porsche 356
• B0798 Porsche 550
• B0798 Porsche 718
• B0798 Porsche 804
• B0798 Porsche 901
• B0798 Porsche 904
• B0798 Porsche 906
• B0798 Porsche 907
• B0798 Porsche 908
• B0798 Porsche 910
• B0798 Porsche 911
• B0798 Porsche 911 Type 991
• B0798 Porsche 911 Type 996
• B0798 Porsche 911 Type 997
• B0798 Porsche 912
• B0798 Porsche 914
• B0798 Porsche 917
• B0798 Porsche 924
• B0798 Porsche 928
• B0798 Porsche 930
• B0798 Porsche 931
• B0798 Porsche 935
• B0798 Porsche 936
• B0798 Porsche 937
• B0798 Porsche 944
• B0798 Porsche 959
• B0798 Porsche 962
• B0798 Porsche 964
• B0798 Porsche 965
• B0798 Porsche 968
• B0798 Porsche 986
• B0798 Porsche 993
• B0798 Porsche 996
• B0798 Porsche Boxster
• B0798 Porsche Boxster Type 981
• B0798 Porsche Boxster Type 986
• B0798 Porsche Boxster Type 987
• B0798 Porsche Carrera Gt
• B0798 Porsche Cayenne
• B0798 Porsche Cayenne Type 92a
• B0798 Porsche Cayenne Type 9pa
• B0798 Porsche Cayman
• B0798 Porsche Cayman Type 718
• B0798 Porsche Cayman Type 987
• B0798 Porsche Coupe
• B0798 Porsche Dp
• B0798 Porsche Gt
• B0798 Porsche Gt2
• B0798 Porsche Gt3
• B0798 Porsche Karisma
• B0798 Porsche Kremer
• B0798 Porsche Macan Type 95b
• B0798 Porsche Mega
• B0798 Porsche Panamera Type 970
• B0798 Porsche Panamericana
• B0798 Porsche Rsk
• B0798 Porsche Tapiro

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