Where is the fuse box on a Porsche 997?
Older cars have glass, cylinder-shaped fuses. The ends of these fuses are stainless steel, and there is glass in the middle. The fuse box in newer cars is under the hood usually, while the fuse box in older cars is under the dashboard on the driver’s side. Your owner’s manual will include information about the location of the fuse box in your car.
How can you tell if a Porsche 911 has a blown fuse?
Switch off the load with the defective fuse. Open the fuse box cover. Remove the corresponding fuse from its slot using the plastic gripper in order to check it. A blown fuse can be identified by the melted metal strip inside it.
How to diagnose O2 sensor heater circuit failure?
The modified test harness with the light will give you easy access to the circuit. Remember, the engine needs to be running at this point. If the voltage is close to zero on the positive heater wire, then locate the open circuit in the power wire back to the fuse. Again, it may have a relay in the circuit as well.
What should I do if my O2 sensor shorted out?
In that case, first check for a blown fuse. If the O 2 sensor’s heater had shorted out, the fuse may have blown as well. Once you determine that the fuse is okay, check for voltage at the O 2 sensor harness connection. The modified test harness with the light will give you easy access to the circuit.
Switch off the load with the defective fuse. Open the fuse box cover. Remove the corresponding fuse from its slot using the plastic gripper in order to check it. A blown fuse can be identified by the melted metal strip inside it.
When to change the fuse on a Porsche 997?
Fuses are meant to blow when there is a surge or short. Before taking your car to a mechanic, consider replacing the fuse on your own. This article applies to the Porsche 911 (997) (2005-2012).
Where are the oxygen sensors on a Porsche Boxster?
Keeping the engine at the stoichiometric level (14.6:1 air/fuel ratio) helps the engine generate the most power with the least amount of emissions. The oxygen sensors are located in the exhaust system of the engine, and they sense the oxygen content of the exhaust gases.
What’s the oxygen sensor on a Porsche Carrera 4?
The Porsche factory workshop manuals state the following: “911 Carrera 4 has a new, water-proof oxygen sensor. Water-proof means that the upper sensor section and housing are connected leak-proof with a later welded seam and previous reference air openings are omitted. Reference air is now taken via the connecting lead and plug connection.