Ok, checking the pricing, labor for the plugs alone is almost 3 hours, the wire set should not have any extra labor charge on it.
$168 for a set of spark plugs seems high unless there is some labor charged added to it.
Not happy with the price of the ignition coil. I am showing the dealer coil to be $89.00
See, I am a little confused with the pricing because the labor I understand at $252, but it looks like they charged you labor for replacing the plugs twice here.replace both spark plug banks; 252.45
; felpro - intake plenum gasket - 29.78; interstate battery - 138.95; labor - 252.45
Anyone can clear the code for you. Trans shop, dealer, that part doesn't matter.
I am thinking the battery price is about right, the intake is about right, and even the labor charge, but I do think you were over charged for the spark plugs and hit very hard for the coil.
Both are over charges to me.