02 Sensors and fuel economy

[Phillbert]

Hi guys i have a 05 VZ SV6 which is a bit of a pig on fuel. I was wondering if i changed the 02 sensors would it help get back some fuel economy to it?

 

[Not_An_Abba_Fan]

It will probably improve it, but you really need to track down the cause. What is your usage now? And how do you drive it?

 

[Phillbert]

It will probably improve it, but you really need to track down the cause. What is your usage now? And how do you drive it?

Well in comparison to the VS Ecotec it uses twice the amount lol, im a cruiser don't hoon, don't even use the power button (in this car). Just regular driving. Had it 4 yrs always a bit heavy but seems to use more these days.

 

[vr304]

New O2 sensors help especially if the old ones have never been changed but also how’s your air filter,fuel filter? Cleaned your maf sensor? Run injector cleaner thru your tank? Carrying excess weight in the car? Oil and filter done when they should be?

 

[Phillbert]

New O2 sensors help especially if the old ones have never been changed but also how’s your air filter,fuel filter? Cleaned your maf sensor? Run injector cleaner thru your tank? Carrying excess weight in the car? Oil and filter done when they should be?

Air filter is a MACE CAI which is a few yrs old now, so might get another filter for that.
Never cleaned the MAF on this car so might try that as well
Injector cleaner is only about $20 from memory so might give it a hit as well
Oil, it's actually due for a change atm so i better get on to it next.
No heavy loads just me.

 

[vr304]

Air filter is a MACE CAI which is a few yrs old now, so might get another filter for that.
Never cleaned the MAF on this car so might try that as well
Injector cleaner is only about $20 from memory so might give it a hit as well
Oil, it's actually due for a change atm so i better get on to it next.
No heavy loads just me.

Just make sure you use maf specific cleaner for that, I changed the o2 sensors in my ve ss when the fuel economy figures were starting to go to **** and it did improve after

 

[Phillbert]

Just make sure you use maf specific cleaner for that

Oh ok, i thought you could use Throttle Body Cleaner for it

 

[vr304]

Oh ok, i thought you could use Throttle Body Cleaner for it

No definitely not mate and that’s another thing you could do as well give the throttle body a good clean

 

[Not_An_Abba_Fan]

So many things affect fuel economy. Check your tyre pressures too.

 

[vr304]

So many things affect fuel economy. Check your tyre pressures too.

agreed mate it’s something that some people definitely don’t do often enough