I have recently purchased a vitz 99. There is a problem with the overdrive button. The issue is that overdrive does not turn off when i press O/D button. It remains in Overdrive mode, morover when i press the O/D button to turn it off, no indication light for O/D off appears in the Meter.
I want to know what might be the cause of it? Is it a bad temperature sensor? or A fault in the gear system? or Some cfaulty connections?
Please help me out to resove this issue.
Secondly, there is another strange problem in my car. Initially the pick of the car was good on both petrol and CNG, but suddenly the performance has dropped on CNG as well as on Petrol. The car wont climb even on a slightly inclined road and loses its power. I have got the Tappets checked, i have got the plugs checked and they are OK.
Sometimes when the car is converted to CNG while in standing position and i try to accelerate it it just dies and wont move forward. But once i turn it to petrol and convert it to CNG in running position it runs fine, but as soon as i slow down the car, and i try to accelerate it again it gives up. What can be the problem? Should i go for computerised tuning. I have Garrage Masters behing the Firbrigade are good for Computerised tuning. Can anyone share his experience please. What do they charge for complete tuning?