OBD2 Info Guides

Quick Answer P0340 is triggered when the engine computer detects a problem with the camshaft position sensor circuit. The cause…

Quick Answer P0325 means the engine computer has detected a problem with the Knock Sensor 1 circuit, usually on Bank…

Quick Answer P0306 means your vehicle’s computer detected a misfire in cylinder 6. P0306 repair cost can range from a…

Quick Answer P0306 means the engine computer detected a misfire in cylinder 6. To fix it, confirm the misfire with…

Quick Answer P0306 means the engine computer detected a misfire in cylinder 6. Common P0306 causes include a worn spark…

Quick Answer A P0303 code means your vehicle’s engine computer has detected a misfire on cylinder 3. The most common…

Quick Answer Common P0306 symptoms include a rough idle, engine shaking, hesitation, weak acceleration, reduced fuel economy, hard starting, and…

Quick Answer P0306 means your vehicle’s computer detected a misfire in cylinder 6. The code doesn’t identify the failed part,…

Quick Answer P0305 means your vehicle’s computer detected a misfire in cylinder 5. The P0305 repair cost can range from…

Quick Answer To fix P0305, confirm the cylinder 5 misfire with an OBD2 scanner, save the freeze-frame data, inspect the…

Quick Answer The most common P0305 causes are a worn spark plug, weak ignition coil, damaged plug wire or boot,…

Quick Answer Common P0305 symptoms include a rough idle, engine shaking, hesitation, weak acceleration, hard starting, reduced fuel economy, stalling,…

Quick Answer P0305 means your vehicle’s engine computer detected a misfire in cylinder 5. The code identifies the affected cylinder,…

Quick Answer P0304 repair cost can range from roughly $100 for a simple ignition-related repair to several thousand dollars when…

Quick Answer To fix P0304, first confirm that cylinder 4 is actively misfiring, then test the ignition, fuel, air, and…