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Discussion Starter #1
Hi guys

I have new problem , i connected alfadiag to my alfa and i have few foult codes, misfire on few cylinders and lambda sensor bank 1 pre cat, i think misfire is because of spark plugs, i couldnt find any bills for spark plugs so i think they are due to change, but lambda sensor pre cat bank 1 ,any links guys i got 4 lambda sensors and i dont know wich one should i change.

thank for any help
 

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I think, that you should replace the spark plugs first and repeat the diagnostic procedure then. It is possible for the lambda sensor failure to be due to the spark plugs malfunction.
 
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