04-01-2017, 08:38 PM
Join Date: Oct 2007
Location: FraserValley, BC, Canada
Ding, Ding! bell ringing...
Unfortunately, changing parts without verifying the underlying failure is prone to failure..
If you changed the O2 due to a code, you failed to verify the trigger condition, There would be several reasons for a code to trigger..
Looking at your scan data, the fuel trim is too high, again there could be several conditions which may account for this..
Check the fuel trim at idle, then again at 2000, 3000 rpm, hold at selected rpm till FT stabilizes, Best to post a graph of the results.. report back
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