i have a question regarding tuning the SY416 1600cc engine in baleno...
there are three variable on the throttle body, 1-throttle plate screw 2-TPS and the screw on top of it (air bypass valve as far as i know it)
i have been trying to get is tuned to the best possible settings as i have myself already changed all three variables...
i have already tried to consult the senior technician at dealership with help of there diagnostic tool...but they cudnt help much although there was no error watsoever...and never have been in history...
the problem...which im facing is bad milage on petrol and un even acceleration which rightly points towards TPS adjustment...which indirectly requires throttle position screw and bypass valve adjustment...
i would appreciate if someone can help me out professionally in this regard....BTW im in lahore..and use it both on CNG n PETROL....there is no advancer in my car...only emulator...so even on CNG it runs through ECU...using NGK platinum spark plugs...with factory gap..BTW engine manual says the gap should be 1 to 1.1 mm... air intake is blocked...rest is totaly stocked...timing is advanced at 10 degrees which is factory setting to run on petrol...it has a distributor..plug wires are stock...everything else is stock...it has run 130k...engine is original...no smoke...no oil reduction etc...