Sfkn2

I know this isn't quite an Evo forum, but I wanted to get some facts before I go bashing. My cylinder 2 is running super lean (white tip from spark plug.. pretty bad), the others are running rich and "safe." I swapped out the stock injectors for some RC 750cc, brand new pieces. The car also has a Walbro 255lph fuel pump.

I knew there was something wrong when my torque seemed to be inconsistent, so I ran a boost leak test.. it held fine. So I pulled out the plugs to do a compression test and noticed that the spark plug from the 2nd cyl (the ONLY cyl that had the white spark plug tip), but the compression was fine.. 130 all across.

One of the mechanics said that it was due to bad injectors, though doubtful because they are new and they came out a flow sheet that showed all 4 at 750 or fairly close.

Some say it was due to the tune.

The car hasn't thrown a CEL.. at least not yet.

What do you guys think? Help me out here. Thanks again S2ki family.



Edit: I changed it to GReddy 1 step colder spark plugs to see if the same results will come out.. I'll pull the plugs next week.

Any ideas?

SOHCmyDOHC

vacuum leak on the injector? spray some carb cleaner around the injector and if the car idles up then you got a leaky leak. You check if the oring was okay? Maybe sparkplug a little loose? Thats twhat I would check first and the posssibly swap the injectors around.

HTH

ptype

hope the cold plugs will do the trick, but from my experience it might not, Don't push it toooo hard till you find out the outcome. GL charile.

Sfkn2

Thanks man. The car doesn't even have 10k miles yet and I've been experiencing tons of problems already... Ugh.

Worst of all, I'm not even putting that much power down.... yet!






This makes me miss my S.

macr88

Wow, already hatin on it.


Swap injectors and sell it

itS2Krazy

you just have a newer mitsubishi eclipse motor.

mrbean

i am sorry but did u get your car brand new Charlie ?

Sfkn2

I didn't get it new.. it had 5k miles when I picked it up. From what I could tell, the car was never modified. The bolts and screws look like it was never tempered with.. no stripping or signs of it being taken off at all.

Sfkn2

Don't worry, Mac. I'm probably coming back soon. My lady has been thinking about picking up a new S... She already has plans for the Laguna Blue. LOL.

RWD_RCKT

I don't have much experience with EVO motors, but 130psi for a one year old car sounds pretty low. My old Celica All-Trac was 8.6:1 and compression was 165psi!!! But low compression would just lead to being too rich so it must be me.