B0009 Oldsmobile Eight OBD Code

OBD/2 B0009 error code description and symptoms.

The Throttle Position sensor signals the Engine Control Module as to the current position of the engine throttle valve.
The current throttle valve opening is based on the driver's input from the gas pedal. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

A good starting point in your diagnosis is checking all system fuses and fusible links. This can be done using the DVOM on the voltage setting. You will want to test the fuses with circuits loaded. Some fuses will appear normal until a load is placed on their respective circuit; at which point they will fail. This has been the cause of many 'phantom malfunctions'. Consult your vehicle information source for fuse and fusible link locations. If all fuses are in working order, you may want to check TCM relay operation by swapping identical relays. Usually the horn relay, starter relay, fuel pump relay, air conditioning clutch relay, and controller relays are similar enough in design to swap for diagnostic purposes.

B0009 Oldsmobile Eight Error Code Repair Process :

If your vehicle failed a B0009 test and the B0009 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses manifold absolute pressure/barometric pressure circuit intermittent a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look manifold absolute pressure/barometric pressure circuit intermittent: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

Common Causes of Oldsmobile Eight B0009 OBD2 Code

A common cause of code B0009 is the failure of Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent, but there are several other possible causes as well, such as ;

Damaged ECM
Engine Control Module (ECM)
Faulty ignition coil (s)
Faulty variable valve timing (VVT)

B0009 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.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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B0009 Oldsmobile Eight OBD Code

B0009 Oldsmobile Eight Error Code Repair Process :

Common Causes of Oldsmobile Eight B0009 OBD2 Code

B0009 code for other Oldsmobile cars