Edited by ukat3731 on August 24, 2014, 7:34 pm you also said that creating a air leak the o2 sensor voltage did not move from 0.3v this is not fully lean 0.1 is . Edit you posted 0.03 so this is fully lean Is it not posable you just have a bad o2 sensor ? what does the rear 02 sensor do when you create a big air leak ? pull off the brake servo hose and see what you get. what does the rear o2 do when you add brake cleaner ?
if there is no fault the fuel trims should sort them selves out after a fairly short time .
shane you havent said if there is a fault code to go with your lean condition.
if the rear 02 is a good sensor can you swop the front and rear to see what you get.
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Citroen C3 1.4 2002 - Lean mixture - Fixed # - Shane Gray August 23, 2014, 11:14 am
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on August 24, 2014, 7:18 pm, in reply to "