Hi I have a City 2004 iDSI manual without CNG and i am having a problem:
The RPM used to be at 800 at idling, but some how it has changed to 1000 without any reason. what could p[ossibly be causing that and how can it be brought back????
get the throtle body servicednothing to worry about
spray little wd40 on throtle body, it might do a trick
it can be the air getting in from some unwanted place. check air filter fitting, air pipes, throttle body and idling speed valve.