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
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