00:00VW Golf GTI misfiring? Don't replace parts yet. Check the OBD fault codes before replacing any
00:07parts. Inspect the spark plugs for wear, fouling, or damage. Test the ignition coils for weak or
00:16inconsistent spark. Look for vacuum or boost leaks causing unstable combustion. Check the
00:23fuel injectors for clogging or poor spray patterns. Inspect the air intake system for leaks or loose
00:30connections. Verify the fuel pressure is within the correct range. Check the MAF, MAP sensors for
00:39incorrect readings. Test for carbon buildup affecting airflow and combustion. Diagnose the
00:46root cause first instead of replacing parts blindly.
00:53So, let's get started.