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ENGINE 273 MPFI 61 ENGINE 10. HIGH FUEL CONSUMPTION Low battery voltage Check and tighten connections. Jump start using good battery. Get battery charged/changed Inlet manifold leakage or vacuum Check and rectify Incorrect tappet clearances Check and reset Valve timing incorrect Set valve timing /check & reset Worn out piston rings/seized pistons Overhaul /replace affected parts Spark plugs defective Clean and check gap/replace if necessary Adulterated fuel Flush the system and refill Faulty lambada sensor Check and Replace Clogged injectors Check and Replace Faulty fuel regulator Check and Replace Faulty firing order/ injector Check and rectify (connection) order 11. HIGH OIL CONSUMPTION CloggedAir Filter Clean/replace Worn out piston rings/seized pistons Overhaul /replace affected parts Valve guide seals leaking Check and Replace