I need to change the spark plugs and i dont know where to fine them

You'll first need to find out if you are lacking fuel or spark to know where to go next. Do a basic test for fuel pressure with a gauge and spark at the plugs when it fails to start.

Go into a motor factors (spares Shop) and look at the spark plug catalogue. the plugs you need for your vehicle will be listed under your model name and year.

Check for sparks.
Do It Yourself Diagnosis and Repair

The plenum needs to be removed from the top of the engine to remove the rear three plugs, it can be a bunch of work if you dont know what you're doing. The front three plugs are easy, i would suggest buying some good plugs so you dont need to change them very often.

its not that hard al you got to do is get a spark plug socket there is going to be two sizes your going to need the smallest one and just follow the spark plug wires to the spark plugs and then take them out but make sure you put the new wire on right when you take the old one off so you dont mess up the fireing order

ok that is not the easy the ones in the front those are the easy ones but the ones in the back thse are dificul ones so in order to change those spark plug you need to race the car and try to change them from underneath this is one way the other way is to remove the intake sistem and change them from the top

the first thing you should check if your car doesnt start is compression, then ignition, then fuel, in that order, even if you got spark and fuel without compression your going no where

hi you will find that the rocker cover is proberbly leaking into the the plugs housing replace the rocker cover gasket yates210456

change your spark plugs......most of the power lost involved is because of using injector cleaners and toooooooo much of it........it ok to use it.....but it will fowl your plugs.......supper easy to change them...Note: make sure you use a spark plug socket...with the rubber insert so you dont keep dropping the plug.......just unplug the black wires one at a time and pull out the coil/plug wire.......and change them......please dont use those crappy champion plugs.....!!

I had the same problem, obd2 said cyclnders 1 and 3 were misfiring. After changing the spark plugs replace your coils. they are about 20-40 apiece. If you arent able to do it yourself or have a friend do it expect to pay 150-300 dollars depending on the mechanic and the amount of coils.