I've posted a few times before - some folk have been very helpful with advice, comments and other avenues to pursue. Here's the long and short: car as above estate. Problem since day one has been terrible (i'm led to believe) fuel economy - in the region of 15-20 mpg (uk gallons) whether local or mway at steady speeds. Changed all filters, oil etc - twice, including prefilter. Also checked brakes, checked underneath for leaks and also changed all poly pipes (which were quietly weeping as opposed to loudly gushing). no diesel sitting in injector wells, no other leaks i can detect and no black smoke. three bottles of diesel redex - one poured neat into fuel filter. Thanks to Parrot's DIY, cleaned the MAF (which didn't look too bad) but still, i've had no improvement on economy since the day i bought the car. no fault codes, nothing comes up when the OBD is scanned, either. Best of all, the car runs sooooooooo good! smooth, quick and not even the trace of a splutter or misfire (so far). However... have noticed a bit of an occasional rattle when idling. I'm suspecting the cat might be shot, or on its way out but as i said before, performance seems great and there's isn't much noise that suggests the cat is falling to pieces - just an occasional sort of rattle. I'll take it to an exhaust place and ask them to check. Question is: can a shot cat section of the exhaust cause severe impact on fuel economy? I've done a trawl but not come up with any hits/matches, btw.
APologies for the long post but details can be important... i guess.
tia
mojo
APologies for the long post but details can be important... i guess.
tia
mojo
