Fault code 34

[another sunny]

:roll:I have finaly remembered to print off the instructions on fault code checking, it flashed u 34 which i think is detonation sensor.
What does this mean? is it a common fault ? is it easily fixed?and is this the reason my car is running very rich?:shock:

 

[mattygti-r]

det sensors are expensive bit of a pain to replace too

 

[Fusion Ed]

Det sensor will retard the ignition and will result in poor fuel economy and loss of power. It would not run rich although it may give some similar symptoms of it.