silicuda

I get 350KM per tank of gas on my car, IF i drive it nicely (shift before 3000RPM).

This is ridiculous gas usage for a v6 3.4L as many of you v8's get 400 km's if you drive nicely. My V6 buddies usually get 425 AT LEAST per tank of gas, some as much as 550 per tank.

Does anyone have a tool that can detect and show if my OS sensors are defective? Or maybe a tool to read vehicle codes?

mr_muff

you probably are getting not as bad as you think. i noticed yo uhave changed your rims and tires. you probably have a different tire diameter so the outside spins at a different speed as your old one's, therefore your gauge would go faster/slower depending of if they are bigger/smaller. that and i believe you would be talking about your o2 sensor.

silicuda

yep i have slightly bigger tirer, but ive been getting around 350KM even before i got the new tires/rims..

mr_muff

oh, iunno then

kal2k

hehe even i get 450 - 490 in my v8 SS haha ls1 rules

silicuda

kal, oh stop bragging

LuCiFeR97Z28

Check your catalytic converter and exhaust system for leaks. Even spark issues such a cracked plug wire can contribute to poor mileage. You can check this relatively easily prior to checking your O2's.