Basically the catalytic converter warning light came on just for a few seconds whilst driving the motorway earlier.

 

from a quick research I assume it could be a faulty o2 sensor? dumping unburnt fuel down the exhaust

 

the light is off now and hasn't came back on but I have to assume it will come back eventually.

 

question is if it were to come down to replacing the O2 sensors, how difficult is this job? also what else could cause the warning light to come on?

 

when the light was on I did feel a minor difference in acceleration, but nothing major.

 

 

Thanks

 

Sascha

If it is O2 sensors have a look at this thread, post 3 by Redwine

http://www.300zx.co.uk/forums/showthread.php?169133-frigging-02-sensors

looks like something I'll let Jeff sort out.

 

I'm wondering if its a faulty cat sensor

looks like something I'll let Jeff sort out.

 

I'm wondering if its a faulty cat sensor

 

:yes: get the wire cutters out and snip the problem away forever:biggrin:

:yes: get the wire cutters out and snip the problem away forever:biggrin:

 

:D if I can get under the car :ninja:

pretty sure you can unplug them under the central molding covers.

Spend an hour cleaning all engine bay connectors, it's more than likely unburnt fuel as you said ;)