NANO

66 / 1980

60
ENGINE 273 MPFI
Fuel supply unit faulty Check and Replace
Clogged fuel filter Replace
Faulty firing order/injector Check and rectify
(connection) order
6. POORACCELERATION
Low battery voltage Check and tighten connections Jump start using good battery. Get
battery charged/changed
Clogged air filter Clean as per instructions
Intake manifold leakage Vacuum connections check and rectify
Faulty IACV valve Check & replace
Clogged injectors Check & replace
Faulty fuel regulator Check and replace
Clogged fuel filter Replace
Faulty ignition coil Check and replace
Faulty firing or injector order Check and replace
Incorrect tappet clearances Check and reset
Valve timing incorrect Set valve timing /check & reset
Inlet manifold leakage Vacuum connections Check and rectify
Valve timing incorrect Set valve timing /check & reset
Worn out piston rings/ Overhaul /replace affected parts
seized pistons
Spark plugs defective Clean and check gap/replace necessary
Adulterated fuel Flush the system and refill
Clogged injectors Check and Replace
Faulty fuel regulator Check and Replace
Fuel pump faulty Check and Replace
Clogged fuel filter Replace
7. KNOCKING
Spark plugs defective Clean and check gap/replace if necessary
Adulterated fuel Flush the system and refill.
Incorrect valve timing Check and adjust.
8. MISFIRING
Inlet manifold leakage Vacuum connections check, Rectify or replace if necessary.
Incorrect tappet clearances Check and reset
Valve timing incorrect Set valve timing /check & reset
Spark plugs defective Clean and check gap/replace if necessary
Adulterated fuel Flush the system and refill
Faulty crank angle signal Check and rectify the gap
Clogged injectors Check and Replace
9. WHITISH/BLUISH SMOKE
Clogged air filter Clean as per instructions
Worn out piston rings/seized pistons Overhaul /replace affected parts
Valve guide seals leaking Check and Replace
Adulterated fuel Flush the system and refill