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I need some help. My car is missing on low rpm if i accelerate with heavy foot in every gear. Missing is more noticable in 1st 2nd n 3rd gear. Rest car is smooth. Main point is if car is neutral, there is no missing in any rpm range. The problem is on petrol, n i dont drive it on cng at all. Its been 2 years since car was driven on cng. Any help? What could be causing missing! My mechanic says it isnt coils because faulty coils will miss continiously. In my case at high rpm there is no missing. He says injectors are weak. Could that be reason? PS:There is nocheck engine light on.
It can also be caused by a super clogged up fuel filter or a fuel pump that is on its way out. You should check your car's fuel pressure and see if it is within specs.
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Ok abid, i will get the injectors checked.. Can clogged injectors cause the problem i am having?
Engine was swapped year back with japanese one and has run about 20k kms.head gasket should be ok cuz there is no smoke from exhaust and no reduction in coolant level. Can you tell about location of MAP sensor? Acha tell me another thing, if i disconnect the o2 sensor located in front of car, check engine light comes on but no difference in drive occurs. What does this mean?
O2 sensor when unplugged on cold engine makes no difference because engine is already running rich at idle. O2 sensor makes massive difference in fuel efficiency once engine has reached operating temperature.
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what will be the price of manual gear box (Rxi)? new and used?
If better were within, better would come out.