[Proto_VR]

My fuel useage is normally around 11~12 per 100 which i'm happy with
Laterly its been running alot worse, when i was driving really soft i got 14L and its been even worse that that in the past few weeks

i've also noted loss in perforamce.

after i got the extractors fitted it was going pretty good for a while (still s**thouse fuel tho) then after a week or 2 the perfamce increase i got from em seemed tpo sorta dispere, also i gave it a basic service and it was good for a while then the same deal the loss came back, replaced the sparkys and it was a tad better for a week then back again to s**t house, Got a K&N poddy lastnight so far its running allright but bleh i'm seeing a trend here

its like what evers buggerd up is getting worse over time but each little thing i do is giving it a little extra breath untill it gets worse.

Also my mate was driving behind me yesterday and i was giving it to it abit and all he could smell was fuel. Its deffently also running rich

Now I was thinking it could be the O2 sensor, thats coursing my ecoonmy and perfamce to go craphouse or something else? someone surgested the ignition coils and module.??

What does it sound like guys? what are some things i can test, and whats the easyest way to change the air/fuel mixtures to stop it running rich??

cheers

[xlr8ta]

It is not unheard of for O2 sensors to give up the ghost after fitting extractors.
What happens is that the paint finish on the extractors burns off the inside of them and fouls the O2 sensor.

Another thing that could possibly be causing it to run rich is a faulty fuel pressure regulator, have also seen these fail and give the same symptons.

[Proto_VR]

changed the o2 lastnight

and presto

reved her to about 6 grand for a little sec and no black smoke.. , WEnt for a resable drive power seems about right now and petrol i'm not even going to comment yet cose the petrol useage seemedway too low, LOL we'll wait and see, i did 50k's and she was full after 3.5L i'm like wha wen it lcicked so i keep going get to just over 4L n petrol starts ozzing out, LOL i gave it to it a few times then too... that just seemed too low for me i was expecting about 5 or 6 L

[SOS]

Good to hear its all back to normal mate.

This post has been edited by sos: 14 April 2006 - 12:59 PM