Honda city exi 2002Assalamualaikum needs some help having Honda city 2002 exi had issue of bad acceleration black smoke and bad fuel average my mechanic replaced the fuel pump as it was choked,replacing the fuel injectors as it was taking too much fuel also fix engine wiring having issue,also repair card having fault cost me almost 30k but after running 60-70 km again faced same issue my mechanic told me injectors having fault again after that he replaced injectors 3 times but same issue faced by me again and again after 60-70 km also use to observe petrol smell mostly can someone please help me out to resolve that matter or guide me any person who can sort out that problem...