What is wrong with the steering on my Mazda 6?

I have a 2009 Mazda 6 2.2-litre diesel with 102,000 on the clock. I have come to notice that the steering is loose when going left but a little heavy when going right. Could this be due to tyre problems or could it be the electronic steering sensor. I have changed the wheels around but doesn't seem to be much difference. What else could it be?
Did you change the wheels side to side or front to back? If side to side, first try switching the wheels front to back. If that doesn't fix it, then the steering angle sensor could need to be re-set (or could be damaged). Next on from that, the rack could be damaged with the same fault that occurs on Mondeos: see 14-4-2012 at www.honestjohn.co.uk/carbycar/ford/mondeo-iv-2007/.../
Answered by Honest John on

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