Troubles?

Benzowner

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Bristol
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Qashqai Acenta Premium 1.6Diesel
A few months ago had error code P0266(No.2 cylinder) which I put down to bad fuel, as after a bottle of jet cleaner and a code reset, had no further problems. Today had error code P0263(No. 1 cylinder), again a bottle of jet cleaner and code reset and it too has gone. The fuel use has changed from a supermarket own brand to shell and BP ultra.

Are these codes a sign of something possible worse?
 

Trickythemerc

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Could be an injector on the way out, slim chance that it's bad electrical connection, may be worth pulling the plugs and checking for corrosion on the pins.
 

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