P0301 - Cylinder #1 Misfire Detected

I have already replaced new sparkplugs (NGK) and new ignition wires. And now when i take my car to the shop they say my cylinder #1 is misfired

Anyway, how much will it costs me for a check up?
And what should i tell them to check for?

i dont really want to spend more than 100 bucks for this.

p.s. Will a misfired cylinder slow down your car? or will it damages your engine if you drive it for too long?

 

Go check out my thread... http://www.protegeclub.com/forum/sho...threadid=21935
I have a P0304 -- 4th cyl. misfiring. I've replaced a lot of stuff without results (about $110 for parts + $90 for diagnosing the problem at a garage). Go read... I hope we can resolve this together.

 

Since you've replaced the spark plugs and crap check the injector.