250 in full tank...thats too low almost 6.5km/l
should give minimum 9-10km/l
remove cylinder, all cng wiring, connect the ignition coils with car's original wiring harness by removing all the cng wiring. take out venturi from air filter box...
car cannot give optimum performance if all cng fittings are there... they reduce air intake by using venturi....
take out all cng fittings and get it tuned on factory specs as cng mechanics used to mess with factory settings such as IACV, IMA get them all set on factory specs
you will see major improvement in performance and fuel economy....pick/acceleration will improve as well....you will thank me later....