spark plugs on 1994 Infiniti Q45

Would like to buy this car,owner said is running a little rough because it needs a tune up.Is it easy to change spark plugs for this car...Need some help before buying it.

by in Las Vegas, NV on April 24, 2011
2 answers
ANSWER by on April 24, 2011
These cars have problems with ignition coils, misfire due to ignition failure does not identify failing cylinder and people end up replacing all the coils (expensive). I wouldn't buy this car unless it is got running smoothly. Q45 is a lot of car but seen electrical problems.
ANSWER by on April 27, 2011
Be careful, the injectors go bad due to ethanol (10%) in gas destroying the injector coils. The engine will run rough like a bad sparkplug. Have it checked by a competent Q45 tech before going any further. These can be expensive cars to maintain at this age.
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