4 Cylinders Misfiring, Engine Codes P0301-P0304

Asked by PrivateRyan Jan 13, 2015 at 06:31 PM about the 2003 Volkswagen Passat GLS

Question type: Maintenance & Repair

I have a 2003 VW Passat and I just received information about all 4 of my engine
cylinders misfiring.  Error codes P0301-P0304.

Exactly1 year ago I replaced all 4 ignition coils and 4 spark plugs and now I am having
this issue.  The engine light starts to flash and it sputters after a few minutes of being
on.  It has 160,000 miles and I am trying to decide whether its worth repairing again.
Hoping for any insight anyone has related to this issue.

Thanks a lot!

5 Answers
45,825

Deathjam4 answered 9 years ago

clean your maf and the problem will most liekly go away. Dirty sensors can cause alot of issues in a computer driven vehicle.

3 people found this helpful.
Mark helpful

Steven answered 5 years ago

I’m having the exact same problem. Already cleaned my MAF. Is there any other advice out there?

Mark helpful

GuruJN7V9 answered 4 years ago

My daughter has a 2000 Passat and when she hits about 70-75, the engine bucks and the code reader says "Cylinder 2 Misfire". Up until those speeds, the engine is fine. Could it be the MAF giving trouble when the engine load hits that 70mph point? Thank you!

Mark helpful

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