You should be aiming for 35+MPG so something is going seriously wrong. If the injectors were broken/blocked I wouldn't think you would lose alot in MPG, as the same amount of fuel would go to the injector, it would just not reach the combustion chamber. Although the ECU could possibly try to counter balance this by putting more fuel into the injectors, although I think this is unlikely. Whatever it is, it's in need of serious attention.
Who told you to change the injectors?
I'd get it down to Renault or any garage as soon as you can, as you may literally be pissing your money all over the road! |