Hey Guys , Please help me with the problem in my cultus. I am having very low fuel mileage , its been 3 weeks since i am facing the problem , Per litre car gives 3-4 km. But, on the other hand on CNG car is giving almost 15-17 km per kilo.
On Petrol and CNG both the car has no pick whatsoever, when we push the accelerator the car has slow acceleration and on the hilly areas the car is unable to push .
When we checked the Plugs , and O2 sensor both were black as well. We did the same process for 3 days and the same result plugs were carbon black.
Till now we done:
1) Changed Injectors
2) Changed Plugs
3) Cleaned throttle body
4) Cleaned Catalytic converter
5) Changed Clutch and Pressure Plate
6) Changed O2 Sensor
Oxygen sensor was damaged before , we replaced it with new one .But, new one was not giving voltage on scanner. We checked the sensor manually with guage it is working.
The reading on scanner is 0 volts, the tricky part is check engine light is not On.
7) Changed fuel pump
8) Cleaned fuel filter
9) typoid
10) Map, Maf sensors working
11) Timing adjusted
Kindly help me diagnose the problem, i went to the electricians as well as mechanics they are unable to find the problem.
