I need help

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I need help

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Volkswagen Forum >> VW MODELS >> Volkswagen Jetta >> I need help

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I need help - 4/10/2008 11:44:09 PM

herlouge

Posts: 1
Joined: 4/10/2008
Status: offline

I have a VW jetta VR6 2001, 2 months ago I had a check engin light went on, so I went to see the man who always fixe my car, he did use his computer to check on the system then every thing went back to the normal.

After 2 weeks same problem came on again and my man did the same thing he checked on the system like he use to, the same message came on his computer ( P0420 catalyst system, bank1Efficency below, fault code report: fault code is 16804 ) so we don't know what to do with it so please if you know something that could help please, help us to finish with this problem.

< Message edited by herlouge -- 4/10/2008 11:47:48 PM >

Post #: 1

RE: I need help - 4/11/2008 9:17:58 AM

bagel

Posts: 1358
Joined: 8/16/2005
Status: offline

Did he ever change the O2 snesor?? Bank 1 would the O2 sensor in in front of the cat..if I remember right... I think most cat codes are from the O2 sensor. Now Vw did have a recall about certian sensors going bad, giving codes like "exhaust sytem below threshold", or something like that. All they do is remap your ECU, and it wipes out that code and the old programs installed for the system.

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00 Jetta VR6 GLS 12V 2.8L
Magnaflow Exhaust
Custom Cold Air Intake
Eurosport Underdrive Pulley
GIAC Chip
Diamond Mesh Front Grill
Smoked Euro Tail Lights
18" ADR Rims
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(in reply to herlouge)

Post #: 2