Please help me ; I have a vitz 2002 model facing an issue of black smoke & bad fuel average.Cleaned the throttle body and changed the airfiltes but vein.Please advice what to do??
Your rings might be worn out!
black smoke is the sign of excessive petrol burning .thats y ur fuel average is disturbed.in carby cars we need to adjust air to fuel ratio for this purpose.dont know about efi cars.
In that case Ali the colour of the smoke is white as it's a petrol car
did you ever connect it to a proper scan unit?
Yes But no fault code
share the live readings here
there is more to scan. Fault codes are just marker flags.
Clearly car is consuming extra fuel
maybe the plugs are worn out! cud be choked injectors too! or a choked fuel filter!
Fuel average is disturbed right after CAT removal or if ur O2 sensor is not functioning well
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