Question about 2002 Volkswagen Passat

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Caterlist What does underperforming caterlist mean? I have a 2002 VW Passat

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  • rumeng Oct 19, 2008

    I have the same problem on my Passat 2002. An error code of 420 comes up when I use my diagnostic tester. When I cleared it up through the tester it came back a couple of times and now it's been awhile and it's OK. I even bought an OEM catalyst converter for replacement but I am holding it off for now. Is there something else that could cause catalyst underperformance(other than bad coil)? By the way I had a bad coil and drove the car to the dealership (about 4 miles) with that condition. Should I go ahead and replace the catalyst converter?

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Was the fault code p04020 or has it failed the mot.need more details then will be able to help

Posted on Oct 19, 2008

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How many fuse box has the 2002 vw passat 1.8 t


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Nov 15, 2010 | 2002 Volkswagen Passat

1 Answer

What fuse number is the worning lights in a vw passat 2002


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F39 (15A) = Hazard warning lamps

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Please rate my response. Thanks!

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2002 VW Passat running fine. Stopped for errand


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Apr 22, 2010 | 2003 Volkswagen Passat

1 Answer

Engin coolant


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Mar 19, 2010 | 2002 Volkswagen Passat

1 Answer

Dose the coils on the passat differ from the coils on the golfs. What are the specifications on the coils of the passat 1.8 T 2002 MODEL


the passat uses coil packs one for each cylinder and the 2002 golf uses one coil pack that fires all cylinder and also not the same engine in 2002. now the 2000 vw golf with the 1.8 engine uses the same coils,so if its a 2000 vw golf with a 1.8 engine then yes you can use them they are exactly the same, hope this helps.

Mar 01, 2010 | 2002 Volkswagen Passat

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2002 vw passat wagon abs light on


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Mar 23, 2009 | 2002 Volkswagen Passat

2 Answers

Underperforming catalist


readings taken downstream (exhaust) with the O2 sensor are telling your computer that the catalytic converter is not doing its job well enough (it is reading too high an exhaust content of carbon monoxide or hydrocarbons) the solution is to replace the catalytic converter assuming the engine and its other management systems are performing healthy ....good luck

Oct 22, 2008 | 2002 Volkswagen Passat

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