P0301 - Cylinder 1 Misfire Detected P0171 - System Too Lean Bank 1
AI Mechanic Recommendation
Start with ignition coil and spark plug inspection on cylinder 1. If the misfire moves after swapping the coil, the coil is likely faulty. For P0171, inspect intake leaks, MAF sensor readings, fuel trims, and vacuum lines.
Mechanic-Ready Report
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This vehicle shows misfire and lean-condition symptoms. Recommended next action: ignition coil swap test, spark plug inspection, vacuum leak smoke test, and fuel trim review.