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Old 25 Mar 2014, 09:09 pm   #6 (permalink)
HOLEY MUFFLERS
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  • Join Date: Feb 2011
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agreed!















an '09 with coil atop plug config? no way it needs a tune up. ignition wise.















but *if* it is in play, remove and read plugs. one at a time noting position. the high energy ignition system should burn all but the most gross of mixture/combustion issues. usually don't get a lot from reading plugs for that reason. so iffin a plug does read bad, prolly more than a management issue associated with what ever plug(s) read bad.































my guess is that this needs a simple induction and emmissions systems and component cleaning. things get dirty inside.















*seafoam* induction/vacuum and in-tank products is most popular and should cure your issues. seaform in-tank just b4 fill up.















then i would look at youtube for all examples using seafoam on the induction/vacuum system, physical cleaning of induction AND emissions sensors.















not just one clip will have all the tips. so review many.































in the end, or begining, might have the injectors cleaned/replaced. what ever is cheaper.































reputable ASE shop or the dealer is best. iffin you're not mechanically inclined.































any of these links for reading plugs will work,















https://www.google.com/search?q=read...w=1280&bih=620
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