📖 What Does P0305 Mean?
The engine control module has detected a misfire specifically in cylinder 5. This applies to engines with 5 or more cylinders.
Symptoms
Rough idle, engine shaking, loss of power, flashing check engine light during acceleration, poor fuel economy.
Common Causes
Faulty spark plug in cylinder 5, bad ignition coil, clogged fuel injector, low compression, carbon buildup.
Possible Solutions
Replace spark plug for cylinder 5, test ignition coil, clean fuel injector, perform compression test, remove carbon deposits.
Recommended Parts & Tools
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📦 Parts Needed
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Frequently Asked Questions about P0305
How serious is P0305?
This code has a high severity level. You should address this issue immediately to prevent engine damage.
Can I drive with P0305?
Driving with this code is not recommended as it may cause further engine damage.
How much does it cost to fix P0305?
Repair costs vary depending on the root cause, but typically range from $200-500 including parts and labor.
Related Diagnostic Codes
Other codes that may appear with P0305
System Too Lean Bank 1
System Too Lean Bank 2
Random/Multiple Cylinder Misfire Detected
Cylinder 1 Misfire Detected
Cylinder 6 Misfire Detected
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system