Post subject: how to fix po171 and po420 2003 isuzu ascender 4.2 inline 6
Posted: Sat Feb 16, 2008 7:50 am
Joined: Sat Feb 16, 2008 7:36 am Posts: 1
car runs fine for 50 or so miles then just shuts off will not start again for awhile runs for 50 or so miles. replaced 02 sensors ran fine day or so samething codes po172 and po420
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