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1999 VW Passat P0304 Code: Diagnosis After Replacing Plugs and Wires

Model: vw passat Fault Code: P0304 Posted: 2007-05-23 14:36

I own a 1999 Volkswagen Passat that has recently triggered a P0304 diagnostic code. I replaced the spark plugs and ignition wires and reset the system, but within minutes of driving, the same P0304 code reappeared. What specific components should I inspect next? Any guidance on troubleshooting this issue would be greatly appreciated.

Related fault codes
P0304
Comments (2)
Anonymous 2007-05-23 15:44

It's important to focus on actual vehicle diagnostics rather than just posting repeatedly. For a P0304 code, consider checking the fuel injector for cylinder 4 and inspecting for any signs of clogging or malfunction.

Anonymous 2007-05-23 16:07

I'm new to car troubleshooting and didn't find an existing thread until after I posted this one—sorry about that. Any advice on how to properly diagnose a P0304 in a 1999 VW Passat would be helpful.