hello everyone i have a 1.6, o BMIchevy aveo LS, and its misfirng, now only check light tgat pops up from time to time ‡w. vhich be by random misfire and i already know hat, i have chamged to thimgs : did complete tune/up, spark plugs & wires, coil pack, cleaned fuel damper , but didnt notice a change, i changed cold air intake back to stock still no difference, i chamged IAT, TPS , Purge valve. can any help me
