B0798 Porsche 993 OBD Code

OBD/2 B0798 error code description and symptoms.

The Transmission Range Sensor (also referred to as the PRNDL input an/or neutral safety switch) tells the transmission control module (TCM) an the engine control module (PCM) that the transmission is in park, reverse, neutral, drive, low, 2nd, 3rd etc. It is attached directly to the manual valve of transmission, so when the shift lever is moved from park to drive, the Transmission Range Sensor communicates this critical information to the above mentioned vehicle control module systems.

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 993 Error Code Repair Process :

The rule of B0798 code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of throttle position sensor disagreement btwn sensors. Likewise, overriding the OBD B0798 error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

Difficulty Level (Easy)

Repair Time (20 Min.)

Cost Prediction : $ 60-110

Common Causes of Porsche 993 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 ;

• Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
• Erratic camshaft position due to low oil pressure
• Incorrect fuel filler cap used
• Incorrect Positive Crankcase Ventilation (PCV) hose connection

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 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 981
• 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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