Fuel consumption

[srb 33]

Ive been trying to solve my fuel problem in my R33. At the moment I got 125km off 23 litres, this is after a mechanic told me to take it back to the shop where I bought it from and have them replace the neck and fuel cap, which wasn't done apparently to comply with Aust standards. Done that. He did stick a thingo in the exhaust and he said that it's running better then perfect. He reckons that fuel would be evaporating. So what next, no improvement? I reset my cpu last night.

If it is running rich due to some reason (sensor ect) it would have to come out of the exhaust?Yes. If the mix is perfect then it must be leaking or evaporating somewhere. What to do next?

[timbar32]

Checked 02 sensor? If not do a search- big thread on this not long ago...

[vape]

Hi Guys, I just got 560km off my tank of BP Ultimate. I am not running any mods - stock 97gtst with different exhaust (damn compliancing...)

I am not sure what everyone is on about only 300~km off a tank.... ???

[paulr33]

dead o2 sensor, check maitenace thread.

[srb 33]

dead o2 sensor, check maitenace thread.

Dead o2 sensor, wouldn't the engine light come on? That's what happened in my Integra the engine light came on so I had to take it to get checked and get the diagnosis. Wouldn't it be the same with Nissan's?

I've only got 53k on my clock.

[paulr33]

the engine light doesnt come on when the o2 sensor is dead

[JimX]

Hi Guys, I just got 560km off my tank of BP Ultimate.  I am not running any mods - stock 97gtst with different exhaust (damn compliancing...)

I am not sure what everyone is on about only 300~km off a tank.... ???

Mod it and stop driving like a grandma, then you might understand

[4door_Sleeper]

I thought that the CAT would burn up any rich exhaust gasses, and hence hide the true mixture settings. I believe there is a warning light for the CAT (I think it only comes on if it gets TOO hot) but the O2 sensor has no warning light.