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MK4 Discussion area for the new fourth generation Golf IV, 337, R32, 20th and Jetta IV produced from 1998 to 2004.5 including Cabrio models.

       
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Old 08-20-2008, 01:23 AM
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Default Engine runs rough when accelerating and 7 error codes!

I have a 2000 Jetta GL 2.0L with 121,100 miles. One day, I was driving and noticed the engine running a bit rough when I tried accelerating. It's been doing this all week since then and hasnt gotten any better. I tried dumping some fuel injector cleaner in the gas, replacing the spark plugs, making no difference. I had a friend test it and found the following codes, Po300, Po303, Po304, Po102, Po1580, Po341, Po1583. I don't know where to start!!! I've had the car for about a year (got it used) and I always noticed when it came to operating temp (190F) it doesnt run as well as when its cold, not jumpy, not as fast. I'm not sure if this is related, but it only seems like the engine runs rough/misfires when its warm, or after driving for 5-10 mins. (i think i posted this in the mk3 section by accident?)
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