Increased fuel consumption — what's the reason? INFINITI FX 4.5 Allrad (232 kw / 316 hp) (01.2003 - 12.2008)
16.06.20
16.06.20
- @matkovska16.06.2020 14:47MemberIncreased fuel consumption is often caused by worn/faulty spark plugs. In this case the ignition of the fuel-air mixture is impaired. Contaminated catalytic converter may result in a sudden increase in fuel consumption. Other possible causes are faulty injectors and fuel leak from the fuel line. The latter often comes with a strong fuel odour while driving. There are many reasons for this, so it is difficult to find the right one without inspecting the vehicle.
I noticed that my INFINITI FX SUV (S50) started to consume a lot of fuel. The on-board computer tells it’s 16.5 litres per 100 km in the combined cycle, but it used to be 14 litres. What’s wrong? What to check first?