If your check engine light is on and a scan tool shows P1322, you’re dealing with a manufacturer-specific trouble code that usually points to an issue with the ignition system often tied to cylinder identification or camshaft position signals. Unlike generic OBD2 codes, this one varies by make and model, so context matters more than a one-size-fits-all definition.

What does P1322 actually mean?

Most commonly, P1322 refers to “Cylinder Identification Signal Missing” or “Camshaft Position Sensor Circuit Malfunction,” depending on the vehicle. Ford, for example, uses it when the PCM can’t detect which cylinder is firing next critical for sequential fuel injection and ignition timing. BMW might flag it for cam sensor correlation errors. You can find more about how this applies to your specific car in our breakdown of the P1322 vehicle diagnostic code.

When would I see this code?

You’ll typically get P1322 after the engine misfires, runs rough at idle, or struggles to start. Sometimes the vehicle goes into limp mode. It’s not always accompanied by obvious symptoms which is why ignoring it can lead to bigger problems like catalytic converter damage or poor fuel economy.

What are common causes?

  • Faulty camshaft position sensor
  • Damaged wiring or connectors near the sensor
  • Timing chain or belt issues throwing off synchronization
  • PCM software glitch (less common, but possible)
  • Aftermarket ignition parts that don’t communicate properly with the factory system

What mistakes do people make trying to fix it?

Many jump straight to replacing the cam sensor without checking the wiring first. Others clear the code and assume the problem’s gone only for it to return days later. Some even swap sensors between banks without verifying which side the code references, making diagnosis harder.

How do I diagnose it correctly?

  1. Use an OBD2 scanner to confirm P1322 and check for any accompanying codes.
  2. Visually inspect the cam sensor and its harness for frayed wires, corrosion, or loose pins.
  3. Test sensor signal output with a multimeter or scope if you have access.
  4. Check timing marks especially if the engine was recently worked on.
  5. Update PCM software if your manufacturer has issued a related TSB.

If you’re unsure what the code means for your exact year, make, and model, take a look at our detailed meaning of code P1322 page it breaks down variations by brand.

Can I drive with P1322 active?

Technically, yes if the engine runs smoothly. But prolonged driving with this code risks unburned fuel entering the exhaust, overheating the catalytic converter, or causing misfires that wear out spark plugs faster. If performance is affected, get it checked soon.

What tools help most?

A basic OBD2 reader confirms the code. For deeper diagnosis, an oscilloscope or advanced scan tool that reads live cam/crank data is ideal. Factory service manuals (or reliable aftermarket ones) give pinouts and expected signal values don’t guess based on forums alone.

For those who want to document their repair process neatly, consider using Auto Tech Mono for labeling parts or printing guides clean, readable, and mechanic-friendly.

If you’re still confused after checking basics, read through our full P1322 OBD2 trouble code explanation. It includes real-world case studies and voltage specs for common vehicles.

Quick checklist before you spend money:

  • ✅ Confirm the code hasn’t returned after clearing it once
  • ✅ Inspect wiring and connectors 60% of “bad sensor” cases are just bad connections
  • ✅ Verify engine timing hasn’t jumped (especially on interference engines)
  • ✅ Check for recalls or TSBs from your manufacturer
  • ✅ Avoid swapping parts blindly test first