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[simon allen]

Hi guys,
My 2.0 16v S reg omega is showing trouble code 0640. A quick look on autodata shows me that it's camshaft position snesor. I have tested the resistance of the sensor, and it matches what autodata says it should be. Autodata also lists this in the "common problems" section and says to fit a new sensor with wiring harness etc.
The wiring has been soldered, so I can only imagine that this has already been done?
I have searched on here and found reference to the timing belt possibly being a tooth out, or incorrectly tensioned and this causing the problem. Whe I bought the car it had not long had the belt done. Basically to cut a long story short, it feels underpowered (and IS underpowered compared to my friend's of exactly the same spec) and only does 19.2 to the gallon. I don't thrash it, but on the other hand work is only 5 miles away from me...
Probably ranting on a bit but to cut a long question short,
A) would the camshaft position sensor kick up code 0340 if the timing belt is loose/out a tooth
and B) would the only symptoms of said belt being out be poor performance, and high fuel consumption?

generally it really drives and runs well, just these two problems plaguing me 
Thanks in advance,
Simon

[rustym95]

they do test ok but has to be tested wile in use as heat is main problem, i have one that I fixed ast the sensor in side had melted in side and fixed it, but wold get new one as i was only seing if they can be fixed not fully tested.

[TheBoy]

cam sensor is 0340

[simon allen]

sorry  typo on my part, it is reading 0340 as you say. I think my mind is going. Was definately cam sensor as I wrote it down on a piece of paper when read the code