If your Chrysler 300 with the 3.5L V6 suddenly loses power, stalls at idle, or throws a check engine light and a scan reveals P1344 you’re dealing with a specific camshaft position sensor timing issue. This isn’t a vague “system fault” code. It means the engine control module (ECM) detected that the intake camshaft on bank 1 is out of sync with the crankshaft by more than the allowed tolerance usually ±5 degrees. That mismatch disrupts fuel injection and spark timing, and it’s why you might feel hesitation or rough idling.

What does P1344 mean for the Chrysler 300 3.5L specifically?

The P1344 OBD2 code definition for Chrysler 300 3.5L points to a camshaft position “A” (intake) timing over-advanced or system performance problem on bank 1. On this engine, bank 1 is the side with cylinder 1 the front bank, near the timing cover. Unlike some GM or Nissan engines where P1344 relates to misfire detection or coil circuits, here it’s strictly about cam-to-crank correlation. The ECM compares signals from the crankshaft position sensor (CKP) and the intake camshaft position sensor (CMP), and triggers P1344 when their relationship drifts beyond spec during engine run.

When do Chrysler 300 owners actually see this code?

You’ll most often get P1344 after recent timing belt service if the belt was installed incorrectly or tension wasn’t set properly. It also shows up after replacing the camshaft position sensor without resetting the learned values, or if the sensor’s tone wheel (on the intake cam sprocket) is cracked, bent, or has metal shavings stuck to it. Some owners report it appearing after oil changes using non-MOPAR 5W-20 or low-viscosity oils that don’t maintain proper VVT solenoid pressure. It rarely appears randomly it usually follows a repair, fluid change, or gradual wear in the timing components.

What’s commonly mistaken for P1344 on this engine?

People sometimes assume it’s just a bad cam sensor and replace it without checking the timing belt alignment. But on the 3.5L, the CMP sensor itself is rarely faulty the real culprit is often belt stretch, skipped teeth, or a worn tensioner letting the cam advance unexpectedly. Another common mistake: confusing P1344 with P0340 (cam sensor circuit) or P0016 (crank-cam correlation). Those are different faults with different causes. Also, don’t assume it’s related to variable valve timing (VVT) solenoids unless you’ve confirmed oil flow and pressure P1344 doesn’t directly monitor oil control valves.

How is this different from P1344 on other vehicles?

Yes, P1344 is a generic OBD2 code but its meaning varies by manufacturer. On the Chrysler 300 3.5L, it’s purely a timing correlation fault. In contrast, on GM V6 engines, the same code often relates to ignition coil A primary circuit issues. For the Nissan Altima, it may point to a camshaft position sensor signal error not timing sync. And on the Ford F-150 4.6L, it’s tied to the camshaft position actuator circuit. So reading the code alone isn’t enough you need the vehicle-specific definition.

What should you check first?

Start with a visual inspection of the timing belt cover area. Look for signs of belt fraying, missing teeth, or oil contamination. Then verify the timing marks line up exactly between the crank sprocket and intake cam sprocket this requires locking the crank at TDC and confirming the cam mark aligns with the pointer on the rear timing cover. Use a factory service manual or a trusted resource like the font name diagnostic guide for accurate reference points. Don’t rely on aftermarket timing tools unless they’re verified for the 3.5L.

Next step: Clear the code, start the engine, and road test while monitoring live data for CMP and CKP correlation using a capable scanner. If the code returns within 2–3 drive cycles and the timing marks are correct, inspect the cam sprocket tone wheel for damage and test the CMP sensor resistance (should be 800–1200 ohms at room temperature). Replace the timing belt, tensioner, and idler pulleys as a set even if the belt looks fine since belt stretch is a frequent root cause on high-mileage 300s.