I have lexues es300 with fuel economic problem and I replaced maybe every thing’s related to petrol consumption such as
1-Spark plugs
2- Air filter
3- Cleaned engine from inside by special chemical cleaner
4- Cleaned the injectors also by using special machine
5- I checked by computer 4 times showing Oxygen sensor not working properly & I fully replaced oxygen sensor
6- I checked petrol tank no leak found and no smell of petrol in cabin there
7- I feel my vehicle when I’m driving its heavy and may not move fast and it’s required to accelerate more to go fast.
8- I replaced some things call cogestor or other it’s coming like small Black Box located close to petrol tank and have fully charcoal inside this box – I will send you picture for this box.
9- I take my vehicle to a lot of mechanical person but still no body knows what is the solution for my car.
So can you please advise me what i have to do to repair this problem to make my car to work smoothly and better
FYI with 5 RO It’s take me only 250 KM no more..
Pls help me What I have to do now in how to improve the fuel economy problem in my car ?
Thanks dear
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