How serious is this DTC?
A stored P2282 code will likely be accompanied by severe driving symptoms. The conditions that contributed to storing the code should be rectified as soon as possible.
What are some of the symptoms of the code?
Symptoms of a P2282 trouble code may include:
- Significantly decreased engine performance
- Engine may stall during acceleration
- Backfiring may also occur during acceleration
- Misfire codes might accompany P2282
What are some common causes of the code?
Causes
of this code may include:
- Major vacuum leak on or near the intake manifold
- Faulty MAP or MAF sensor
- Poor intake manifold gasket
- PCM or programming error
What are the troubleshooting steps for P2282?
To diagnose a P2282 code, a diagnostic scanner, digital volt/ohmmeter (DVOM), and vehicle-specific diagnostic information source will be required.
If you can use your vehicle information source to locate a technical service bulletin (TSB) that matches the vehicle’s year, make, and model; as well as engine size, stored codes, and presented symptoms, they could provide useful diagnostic information.
The engine must be in good working condition and capable of producing sufficient vacuum.
Start by carefully checking the intake manifold area for signs of vacuum leaks (with the engine running). Any vacuum leak large enough to store a P2282 code will likely be very obvious with the engine running (remember the EGR valve and PCV valve).
If MAF codes accompany P2282, carefully inspect the MAF sensor hot wire for unwanted debris. If debris is present on the hot wire, follow manufacturer recommendations for cleaning the MAF sensor. Never use chemicals or cleaning methods not specifically recommended by the vehicle manufacturer.
Use the scanner (connected to the vehicle’s diagnostic connector) to retrieve all stored codes and relevant freeze frame data. It’s a good idea to note this information before clearing the codes, then road test the vehicle until the PCM enters readiness mode or the code resets.
If the PCM enters readiness mode at this point, the code is intermittent and may be much more difficult to diagnose. If this is the case, the conditions that contributed to storing the code may need to worsen before an accurate diagnosis can be made.
However, if the code immediately resets, to complete the next step of your diagnosis, you’ll need to search your vehicle information source for diagnostic flowcharts, connector pinout diagrams, connector face views, and component testing procedures/specifications.
With the air intake hose intact and the engine in good working condition, follow manufacturer specifications to test MAF and MAP sensors using the DVOM. If both sensors are functional, use the voltage drop method to test the system circuit.
A stored P2282 code is typically corrected by repairing a faulty intake manifold or throttle body gasket.