× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: 2001 VW Jetta 2.0 L P0420code
Posted to Technical Discussion Forum on 7/13/2009 2 Replies

Test dont guess.

Secondly check for TSB, quite a few manufactures have a reflash for a PO420 code Login to read more.

2 Replies Received (View Replies)