voney
New Member
- Joined
- Nov 2, 2008
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- Members Ride
- VT Calais 3.8
Hi Guys,
I know this question has been asked before (ive spend the last couple of days reading other peoples threads) but I figure one for me can't hurt.
I have a 1998 VT Calais 3.8 Auto and in the last couple of months it seems to have been running poorly and feels a little gutless. I've just started a new job that requires me to drive my car every day and what was just a nagging doubt about the efficiency of my car has become rock solid conviction.
This last week I've been driving in city traffic between work and home in a combination of free flowing and start stop and my average fuel is around 18l/100Km which is much more than it used to be the last time I drove this car regularly which used to sit arout 14-16L/100Km with similar driving patterns.
While I don't drive like a grandpa, I'd call myself "average footed". Additionally it feels like i need to give the car far more foot to get the same acceleration/power that I used to.
Now here's what Ive observed:
- No Fault codes in the computer
- When accelerating anything more than gently my instant fuel jumps up above 50L, even as high as 80L if I need to get in front (but not planted)
- Anecdotally, the car feels like I've got 3 or 4 other people in it in terms of acceleration.
- The idle is a little rough, but no more so than "usual"
In the last 10000km I've replaced the plugs ad leads as well as gotten new tyres (i keep them inflated at 40psi), I also do a tank of total fuel system cleaner every 5000km or so.
I've heard the O2 sensor could be at fault, is there a way to check this with a multimeter or something?
Cheers,
Voney
I know this question has been asked before (ive spend the last couple of days reading other peoples threads) but I figure one for me can't hurt.
I have a 1998 VT Calais 3.8 Auto and in the last couple of months it seems to have been running poorly and feels a little gutless. I've just started a new job that requires me to drive my car every day and what was just a nagging doubt about the efficiency of my car has become rock solid conviction.
This last week I've been driving in city traffic between work and home in a combination of free flowing and start stop and my average fuel is around 18l/100Km which is much more than it used to be the last time I drove this car regularly which used to sit arout 14-16L/100Km with similar driving patterns.
While I don't drive like a grandpa, I'd call myself "average footed". Additionally it feels like i need to give the car far more foot to get the same acceleration/power that I used to.
Now here's what Ive observed:
- No Fault codes in the computer
- When accelerating anything more than gently my instant fuel jumps up above 50L, even as high as 80L if I need to get in front (but not planted)
- Anecdotally, the car feels like I've got 3 or 4 other people in it in terms of acceleration.
- The idle is a little rough, but no more so than "usual"
In the last 10000km I've replaced the plugs ad leads as well as gotten new tyres (i keep them inflated at 40psi), I also do a tank of total fuel system cleaner every 5000km or so.
I've heard the O2 sensor could be at fault, is there a way to check this with a multimeter or something?
Cheers,
Voney