hyundai amica - o2 sensor and other things

Appreciate some feedback on any of this...

1) wife's Amica is hesitating when accelerating and (I asked before) does look like some sensor going west. As I can't get a workshop manual for it (doesn't seem to be one), would it be "the thing" to ask a dealer to run the diagnostics and get a printout? I'm ok for changing the thing (s) once I know which one it is! Changing by trial and error is going to be very expensive. I guess the worse is I get the verbal 2 finger salute as they prob. want to do the work themselves.

2) This car seem to have 2 o2 sensors. They are placed about 6 inches apart in the exhaust manifold. Are they *both* o2 sensors - or o2 + something else?

3) So far the dealer seems like the only place for this cheapo car spares (only done 16k miles - but is 8 years old! Any place I can get cheaper parts (apart from the scrappy that is ) :-)

thanks

Most dealers will read the fault codes for you, but unless the engine management has detected any errors, it's going to be pretty pointless. It'll be more a case of finding somebody who knows how to use suitable diagnostic kit to find the actual cause of the problem.

One pre-cat (used by the ECU for engine fuel mixture/running calculations), and one post-cat (used by the ECU as part of the EOBD standard to ensure emissions system performance is within limits)

Probably not. The problem with cars like these, is that there aren't enough sold within the uk to warrant the aftermarket guys supplying parts for them. You may be able to find a specialist though, who might save you some money over using a dealer.