Code p0171 retrieved from ecu and cleared
My impressions are that rear oxygen sensor broadly mirrors the first, I feel the cat is not doing very much, ltft is up to 125% but mil never came on.
If the cat is not working would the rear sensor affect ltft ?
Also carried out smoke check for air leaks nothing found !
Noticed water temp does not go over 65c replaced sensor but acts the same. suspect this would cause rich condition anyhow.
appreciate your comments
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