C0909 Porsche Coupe OBD Code

OBD/2 C0909 error code description and symptoms.

EGR Flow Insufficient Detected The EGR system is monitored during steady state driving conditions while the EGR is commanded on.
The test fails when the signal from the DPF EGR sensor indicates that EGR flow is less than the desired minimum. Vacuum supply EGR valve stuck closed EGR valve leaks vacuum EGR flow path restricted EGRVR circuit shorted to PWR VREF open to D.P.F. EGR sensor D.P.F. EGR sensor downstream hose off or plugged EGRVR circuit open to PCM VPWR open to EGRVR solenoid D.P.F. EGR sensor hoses both off D.P.F. EGR sensor hoses reversed Damaged EGR orifice tube Damaged EGRVR solenoid Damaged PCM Perform KOER self-test and look for DTC C0909 as an indication of a hard fault.

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

C0909 Porsche Coupe Error Code Repair Process :

If your park brake switch # 2 applied circuit short to gnd check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system C0909 and engine control unit are in charge of monitoring a bunch of different park brake switch # 2 applied circuit short to gnd, and if they get a reading that's a little out of whack, up pops the check engine light.

Difficulty Level (Expert)

Repair Time (35 Min.)

Cost Prediction : $ 40-75

Common Causes of Porsche Coupe C0909 OBD2 Code

A common cause of code C0909 is the failure of Park Brake Switch # 2 Applied Circuit Short to Gnd, but there are several other possible causes as well, such as ;

• Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
• Failures of clutch motion/travel sensors.
• Incorrect Positive Crankcase Ventilation (PCV) hose connection
• Erratic camshaft position due to low oil pressure

C0909 is a kind of Chassis Trouble Code Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

C0909 code for other Porsche cars

You can view according C0909 DTC for your car model. We selected several models to see obd2 solutions click and view it.

• C0909 Porsche 1300
• C0909 Porsche 3400
• C0909 Porsche 356
• C0909 Porsche 550
• C0909 Porsche 718
• C0909 Porsche 804
• C0909 Porsche 901
• C0909 Porsche 904
• C0909 Porsche 906
• C0909 Porsche 907
• C0909 Porsche 908
• C0909 Porsche 910
• C0909 Porsche 911
• C0909 Porsche 911 Type 991
• C0909 Porsche 911 Type 996
• C0909 Porsche 911 Type 997
• C0909 Porsche 912
• C0909 Porsche 914
• C0909 Porsche 917
• C0909 Porsche 924
• C0909 Porsche 928
• C0909 Porsche 930
• C0909 Porsche 931
• C0909 Porsche 935
• C0909 Porsche 936
• C0909 Porsche 937
• C0909 Porsche 944
• C0909 Porsche 959
• C0909 Porsche 962
• C0909 Porsche 964
• C0909 Porsche 965
• C0909 Porsche 968
• C0909 Porsche 986
• C0909 Porsche 993
• C0909 Porsche 996
• C0909 Porsche Boxster
• C0909 Porsche Boxster Type 981
• C0909 Porsche Boxster Type 986
• C0909 Porsche Boxster Type 987
• C0909 Porsche Carrera Gt
• C0909 Porsche Cayenne
• C0909 Porsche Cayenne Type 92a
• C0909 Porsche Cayenne Type 9pa
• C0909 Porsche Cayman
• C0909 Porsche Cayman Type 718
• C0909 Porsche Cayman Type 981
• C0909 Porsche Cayman Type 987
• C0909 Porsche Dp
• C0909 Porsche Gt
• C0909 Porsche Gt2
• C0909 Porsche Gt3
• C0909 Porsche Karisma
• C0909 Porsche Kremer
• C0909 Porsche Macan Type 95b
• C0909 Porsche Mega
• C0909 Porsche Panamera Type 970
• C0909 Porsche Panamericana
• C0909 Porsche Rsk
• C0909 Porsche Tapiro

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