Noisy Injectors & Fuel Consumption

[daneightball]

My AUII has got rather noisy injectors and I am attempting to find out some reasons for this (suspect it needs an injector clean anyway but wanted to clarify before this is done). Also as a side note what sort of K's can I expect economy wise for this bad boy as I am pretty sure mine is right sown. Never really took much notice of economy before but just started keeping track and seem to be getting around 320 - 350 km per tank.

[randel]

hey there, dont know if yours is a 6 or an 8, however I had recently noticed my AU2 having black residue over the back bumper, rear of boot etc...

Not a lot, but more than just road grime. I was the same, wasnt measuring mileage, however started to notice when I was only getting 350 or so k's from a tank. Mine has done 173,000k's, and have read somewhere on the forums that the O2 sensors can deteriorate or lose accuracy.

Mine is a 8, anyhow, I changed my oxygen sensors - the first tank after that I got just over 500 k's - cant remember the exact litres per hundred but a huge improvement in fuel economy.

however, my injectors dont appear to be any noisier than normal, sorry, cant help with that one...

cheers

[daneightball]

Mine is only the six I am gonna pull the fuel rail now any ideas on the O2 sensor are they easy to replace

[Hunter]

Originally Posted by daneightball

Mine is only the six I am gonna pull the fuel rail now any ideas on the O2 sensor are they easy to replace

Most O2 sensors are ridiculously easy to replace - just need a socket that is long enough and you just disconnect the old one, unscrew it and then put a new one in, connect it back up and away you go.

[shockwave XR]

if you take your injectors out, take them to a place that cleans them, they will put them on their test bench and you can see how bad they are. they measure their flow rate over a period of time.