Weird 2004 Dodge Stratus rough Idle Problem
I Have a 2004 dodge stratus 2.4 Liter DOHC engine and Idles Rough.I replaced the spark plugs with Champion Plugs
(Idled rough with old plugs also,Old Ones were AC Ones) but seems to have no loss of Power. Acceleration is
Fine.Also seems to idle fine if Idle is at 900+ RPM,but runs rough below that(mine Idles at about 750 RPM).Also
seems not to idle rough if I Put in Fuel Injector cleaner or 104+ Octane booster in the Gas tank.So I'm guessing I
could rule or an Electric Problem.Only 2 Of the Plugs Misfire occasionally and usual Only 1 will when I get the
error codes.Engine light does not come on all the time either.Only if I let it idle rough for 3 or 4 Minutes.Other
wise driving seems fine.Any Sugestions? Could it be sticky Valves? I also so far went through 3 Bottles of Fuel
Injector Cleaner.So, If I Put a fresh tank of gas(87 or 93 Octane) in with out fuel injection cleaner,problem
returns.I would think my injectors would be clean by now if they were dirty? FUEL Mixture Control Problem Maybe?
Also seems to Idle fine when In Park or Neutral,Only really in gear waiting at a light does it idles rough(With FIC
or 104+ in GAS Idles fine in gear also).