Mods are in my list
Other day car hit the **** while driving. I literraly limped home. Thought I burnt up another sparkplug. So I changed the spark plugs no result. Car starts but is not driveable. While trying to figure out the problem i found...
All plugs and coil are fine
I did recieve a code for misfire in cylinder 2
While inspecting (while standing facing the motor) the closest coilpack from timing belt, its spark plug was not firing... all others were
So I'm only firing three cyclinders
I then assumed it was my new fic 1250cc injector went bad
So I threw my old 850cc injector in... same result could not be injector
I'm now assuming by process of elimination that its the injector clip harness gone bad for that injector. It is bent and the black plactic protector is broken
I'm waiting on that part. Does anybody have any other ideas what my issue is or if i'm corect?
Your help would be greatly appreciated
I hate having the evo dwn. It was just tuned and running great

 

I believe you answered your question yourself...If the spark plug directly underneath the coil closer to the timing belt is not firing (which would be cyl number 2), you have a coil issue most likely. Try swapping that coil with the other one, start the car and check your DTCs again. If the DTC is now a P0304, your coil is no good. If it is still a P0302, and you have eliminated the plug and injector, I would get a noid light and plug it into the number 2 injector connector. Start the car and watch for the light to flash. Should be able to buy the correct noid light pretty cheap. If it doesn't flash, check for voltage on both terminals with the key on (should be battery voltage on one of them). If you have voltage, then the control wire (whichever wire didn't have voltage) from the injector to the ECU must either be open/high resistance, or the ECU is no longer grounding the injector internally. Good luck, PM me with any questions you might have.

 

so an update...
Swapped coil #2 with coil #3
pulled the plug on cylinder 2 with the new coil #3 in its spot
evo stutters but does not die (just like before)
original coil #2 on cylinder 3 with plug pulled car die
I let the car run for a couple minutes to get a possible code...none come up
I checked the sparkplug in cylinder #2 to see if it fired at all
the plug showed no signs of firing

I'm know believe I've narrowed it down to fuel injector #2 harness is not working and sending power to that injector thus not firing cylinder #2

If anybody has any suggestions please respond

 

im no mechanic, but maybe a valve is stuck open/closed?

 

is the plug coming out wet with fuel? do you have a compression tester?

 

Since each coil fires two cylinders the coil swap was not going to tell you anything.

 

Unplug your injectors. Use your old plugs or pull one and and test it in each of the wires. See if it sparks. If one doesn't spark, plug in the other coil pack and see if that one fires now - now it appears you'll need a coil pack, most likely.

I mean it needs two basic things to fire, spark and fuel. You already said it doesn't have spark - so I'm guessing not having spark is your problem. It's probably what I mentioned above but check it to be sure.

 

Definitely do a compression check on that cylinder just to be safe.

 

like the other guy said when you pull the plug on cylinder #2 is it wet or dry? if its dry then defiantly an injector/injector harness problem. If its wet then its definatly an ignition related problem.

 

In cylinder #2 the spark plug is completely dry, thus hopefully being a injector harness problem. I've got a used engine harness coming in on monday. Gonna put that in after a noid test on eash injector harness clip. Including a compression test for safety.
Crossing my fingers... miss driving the evo. Was just getting use to my e85 tune

 

hope you find the problem bro. these small issues can really be annoying.

 

Any updates on this?