Hassan Bhai,
Sorry for delayed repose, i was waiting for email notification on mobile but some how i missed it.
Actually smoke is color less burn, it smells like unburn fuel.
Cylincer kay pass say petrol ki smell aati hai.
Kindly also inform how to check that petrol filter is installed or not.
App kay pass 4EFE engine ka wiring diagram hai. If you have kindly share.
Thanks in advance