Front oxygen sensor?

[lantourismo]

Has anyone changed their front oxygen sensor, got the feeling mine is due to be replaced. How much work was it, OEM vs aftermarket etc?

[sleeper]

why do u have that feeling Akram?

[sleeper]

is it like a tingling feeling or a slow throb?

[lantourismo]

The slow throb of my car using to much fuel, I'm using as much fuel as a RA atm I think. I know our cars run rich from factory but not this rich. So you got the know how Steve?

is it like a tingling feeling or a slow throb?

Lol

[sleeper]

lol, no mate, i`ve never heard of it being done before, i`m not even sure what the front sensor does in relation to engine management.

it IS only a narrowband sensor though so it only reads high or low, not increments inbetween.

as to why your running very rich?, i have no idea.

maybe u should take your foot off the throttle? or maybe its the excessive heat in WA evaporating your fuel?

[lantourismo]

Even when I'm gentle it still uses more then typical, after reading what ppl on here mention about their own fuel use. My average sits around 10-12 most of the journey, doesn't sound right.

So I'm trying to trouble shoot the excessive use, I was under the impression a worn oxygen sensor would give the engine false readings so it would try to compensate by burning extra fuel?

[sleeper]

its possible i guess but it`d be news to me akram

[lantourismo]

Now the cars are getting older te sensors may start needing replacement. Can you give any other reason for that sort of fuel use? I want to fix this problem.

[sleeper]

Can you give any other reason for that sort of fuel use?

not really.

it`d be easy to replace, it just screws out from a bung on your engine downpipe but i`d be using an OEM replacement, all the sensors are similar in fitment but the electrical plug for the loom can differ greatly.

[Zaphod]

Run it into a Mitzi dealer and plug your car into their computer...

Have you changed type/brand of fuel?

[lantourismo]

I always use 95 or 98 octane, usually from the same outlet

[sleeper]

like martin says, its probably much easier to get mitsu to run a diagnostic over it.

[taz]

There are many things that could cause your car to run rich/use too much fuel. O2 sensors arent cheap for genuine, and would run you up at least a few hundred bucks for an aftermarket one based on other ones ive replaced. If its royally "screwed", scanning for codes will bring it up and then i would no question replace it, but it could simply be dirty and need a clean off assuming it is the O2 sensor, however i do advise taking it into a licensed mechanic to do so, as they are very sensitive and sometimes even handling them in the wrong fashion can "screw" them. O2 sensors however typically are good for 2-250km in todays cars with very low premature failure %.
Take it into a good mechanic, tell him to check it out and see what they come out with.

[lancerdarryl]

Tyler,mind your language please

[himynameisdaniel]

ditch the ethanol from the fuel and you will get better kms.
I'm not sure exactly where but there was a law put in place that all fuels need to be 10% Ethanol by a certain year but i think that was for the eastern states

Also some 95 and 98 are just 91RON boosted with ethanol. giving it that higher octane rating.