2000 Dodge Stratus P0301 Cylinder 1 Misfire: Diagnosis and Fixes

While driving, the engine suddenly begins stumbling at idle. The issue resolves when RPM is increased, indicating a misfire specifically under low-load conditions. Vehicle Details: - Year: 2000 - Model: Dodge Stratus - Engine: 2.4L DOHC - Mileage: 60,000 miles - Fuel level: Less than 1/8th tank - Ambient temperature: Initially mid-30s°F, now in the mid-40s°F - Ignition system: Original plug cables and coil; plugs replaced within the last year The fault code detected is P0301 — Cylinder 1 Misfire. Key observations: - The problem did not occur after overnight rest, ruling out condensation due to fuel tank or intake components. - Plug cable lengths are minimal (less than 6 inches), with the coil located directly adjacent to the plug, minimizing spark path issues. - Spark was not tested due to long boot lengths and the position of plugs being below and centered in the intake manifold. Possible causes considered: 1. Faulty spark plug(s) 2. Worn or damaged ignition cable(s) 3. Failing coil pack 4. Malfunctioning fuel injector (cylinder 1) 5. Camshaft timing issues (as a secondary possibility) Note: Fuel tank condensation is unlikely, as only one cylinder is affected — misfires in multiple cylinders would typically indicate a systemic issue rather than localized fuel contamination. What are the most likely root causes for P0301 on this 2000 Dodge Stratus? Any real-world fixes or diagnostics to try? Thanks in advance.