I have Vitz 2004 and the problem which I face is that It does not go beyond 110 km/h on petrol. I got throttle body services, Plugs chaged, ATF changed in short every maintananca aspect has been looked after but still on Motorway 110 is the maximum I get. I have failed to understand that why is it so ?. Though I do have CNG in my car but 80% of the running is on petrol. I must als state that It does not cross 110 even on CNG.
Will be grateful for your prompt feed backs.