okay, i ordered a plug wire set from Lancershop.com...never doing business with them again....and i got number 1 and 3, i think i remember reading something about this before, but is that right? is that all you replace is two of them? what about the other two cylinders? what do i replace for those?

car is an 06 EVO IX MR with 117,000 miles. i'm doing the plugs, and plug wires now. thanks

 

Haha two have coils and two have plugs dude...you are fine. I guess you never taken the sparkplug cover off.

 

i have, it's just been a really long time lol. i changed the plugs at 60k, and i'm about to do it again.

i was afraid that posting that would make me look like someone who does no work on their car, but **** it lol i do all my own service work, installs, that kinda stuff, just wasn't sure about the wires because it's been a while.

is it necessary to change the coils ever, or just the wires? i'm sure if i went outside and looked, i could probably answer all of these questions myself, but i don't have time right now, and it's cold as **** outside lol

thanks

 

Coils can go badly but usually are a work or don't work item. I wouldn't replace a coil unless you have some noticable problem such as a rough idle or missfire of some sort. It's not an item that I would replace just for maintenance as they aren't that cheap.

 

well i'm getting missfires on cylinder 4...a coil cylinder, so maybe it's time to replace them. after i change the plugs, i'll see if i still get the code. if not, then i won't worry about it.

 

Plug #4 has a coil on it and also fires plug #1 through the long plug wire. Plug #2 has a coil on it and also fires plug #3.

 

if you have a service manual there is a test in there for testing the coils to see if they are bad or not

 

thanks dude, i actually do have the service manual downloaded somewhere. i just need to find it. i just changed the wires and the plugs, and the car seems to be responding and idling better now. i want to change the coils whether they are bad or not to tell you the truth. anyone know about how much they cost, and where to get'em?

also, what do you guys use to clean your throttle body?

 

As these cars roll up the miles I expect we will start seeing more posts requesting maintenance items the low mile cars don't require like throttle body cleaning.

When my turbo DSM had about the same miles as your car I cleaned the throttle body. This consisted of removing the throttle body from the manifold, removing any parts that would be damaged by solvent, dunking it in carburetor cleaner, washing it out with water and blowing it dry with compressed air. The compressed air, when applied to the ports where the vacuum hoses attached, blew out a lot of black stuff.

Cleaning should also include putting a meter on the throttle position sensor to check for dead spots and maybe replacing the throttle shaft seals.

 

that sounds like a lot of work lol. i may just bring it to a dealership. they have a system where they attatch a cleaner to a vacuum hose and just blow everything out. cleans the whole system. throttle sticks a bit until the car is warmed up. everybody's told me this is normally because of a dirty throttle body. is there any way to clean the throttle body without pulling it off of the car?

 

May be the "backyard" way but I would just try some carb cleaner and a rag.

I've seen and used a couple of the carbon cleaning systems that the dealers use and I highly recomend that you stay away from that service. Usually what they do is put a hose into your intake and run their "cleaner" through the engine while it is running...all the carbon and other stuff goes out the tailpipe...through the exhaust side of the turbo ect. Plus if you still have a cat on your car they tend to get really hot (like glowing red) from all the crap going through them, I imagine that's not to good on them either!

 

okay, thanks for the input...

last question, where is a good place to get replacement OEM coils, and how much do they normally run?

 

Okada offers a higher output coil pack setup, just did a quick search and found TTP offers them on their website for $455.

 

Yeah, a shop towel with spray on carb cleaner is the ticket for a sticking throttle plate.

 

thanks, but i'm just looking for the OEM replacement parts if possible. anybody know where to find these?