Usually followed by some location information such as bank one sensor 2.
It is an indication that the rear most Oxygen sensor has stopped working, or there is an electrical problem with the wiring going to that sensor.
The solution is to replace the indicated O2 sensor.
Trouble code P0325 means:Knock sensor 1 circuit malfunction
Trouble code P0385 means: Crankshaft Position (CKP) Sensor B Circuit
Turbo/Super Boost Sensor B CKT Range/Perf
Turbo/Super Boost Sensor B CKT Range/Perf
Trouble code P1811 means: Long Shift & Max Adapt
Just below the steering wheel inside the car, a little to the left.
To reset the code 38 on a 1995 Oldsmobile Aurora, first, turn off the ignition and disconnect the negative battery cable. Wait for about 10 minutes to allow the system to reset. Reconnect the negative battery cable and start the vehicle. If the code reappears, it may indicate an underlying issue that needs to be diagnosed and repaired.
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected
Code EXP 18 on a 2001 Oldsmobile Aurora typically indicates a problem related to the vehicle's electrical system or a specific component failure. It may refer to a malfunction in the vehicle's powertrain, transmission, or other critical systems. To diagnose the issue accurately, it's best to use an OBD-II scanner to retrieve more detailed diagnostic trouble codes. Consulting a qualified mechanic is recommended for proper troubleshooting and repair.
you must take it to the dealership. there they can look up the frequency code that goes with your specifically.
Trouble code P0171 means: Fuel Trim System Lean (Bank 1