kc03spec-v wrote:

uh yes.

Spark plugs are FUCKED

Does it have a tune?

No tune, I mentioned it....The plugs should last me a little bit right?

But more importantly what should I start with? I don't have any money and I need to work things out one at a time.

Last edited by Redlinehax (2008-10-01 00:26:17)

Didn't know it was misfiring until like an hour ago

specv118 wrote:

Lmfao thanks preston...I don't even know where to begin though! Someone help

Big J wrote:

you really need to get you setup sorted out before everything goes horribly wrong: tuning, 02 sensors, exhaust, intake leaks, etc.

So worry about it after I get the exhaust on...

As far as you know big J, would running no 02's and throwing the codes obviously, or a vac leak cause this problem?

This is the vac line that's missing....

I'm going to run to my car for a second....

Last edited by Redlinehax (2008-10-01 01:10:20)

Redlinehax wrote:

Redlinehax wrote:

http://img.photobucket.com/albums/v336/ … kX/vac.jpg

This is the vac line that's missing....

I'm going to run to my car for a second....

Well I fixed that, the line was just hanging. But it's still misfiring. Where can I find a vacuum line diagram for our car in the FSM?

Hmmm...nvm I think all the vac lines are honkey dory now. Since the vacuum box and "power valve actuator" have been removed along with the butterfly valves.

Pull out your plugs and see if they are fouled, I bet they are...

fouled plugs are for sure i bet. With your 02 sensors unplugged your car is in a "safe mode" It is running so stupid rich with the 440 injectors and the 02 sensors not plugged in. Im surprized it isnt running like absolute shit. You need to get the exhaust done so you can get the damn 02 sensors in. And get new plugs. NGK step colder from stock. Part # 7654. get that stuff fixed before you fuck your car up man.

silverspec wrote:

fouled plugs are for sure i bet. With your 02 sensors unplugged your car is in a "safe mode" It is running so stupid rich with the 440 injectors and the 02 sensors not plugged in. Im surprized it isnt running like absolute shit. You need to get the exhaust done so you can get the damn 02 sensors in. And get new plugs. NGK step colder from stock. Part # 7654. get that stuff fixed before you fuck your car up man.

that'll be my first try after i get the exhaust done...gonna be a few weeks though

Redlinehax wrote:

Big J wrote:

misfire = bad

bad + a few weeks = worse

I talked to two master techs today, they said i should be fine...i drive the car ~40 miles a week.

your master techs dont drive/work on aftermarket turbo cars all day long.


boost, miss firing, non stock boost motor= bad

silverspec wrote:

ya, Pull your plugs and tell us what they look like. Do that NOW! Find out right there why its misfiring. If it looks fouled than its a rich misfire...white, than lean and you got vac leaks. Or something.

+1

username wrote:

did u have to wire in new injector clips for the injectors?  one of ur connections may be bad.  had that happen to me.

nah, wrx plug n play

Pull the plugs!!! lol It will at least point you towards either a rich or lean misfire. Than you can say..hey its rich..i know why, IM NOT TUNED on 440 injectors Lean..well start looking for vac leaks, etc.

05SpecVnBlack wrote:

What makes you think the car is misfiring?? Just because it's throwing that code doesn't make it so. Do you have 02 bungs in your downpipe?? You should. If you do, get a wideband on your car, and check the afr's. Check your plugs. I wouldn't run stock spark plugs either...Stock Spec V plugs were not meant for a boosted engine. Go to the parts house and get a set of pregapped SRT4 spark plugs and put them in the car. Do you know what detonation sounds like??? Probaly not. Turn the radio off while you are driving. As you gradually increase the throttle, listen for any noises. Detonation will sound like someone shaking a tin can with some nuts and bolts in it. It won't be EXTREMELY loud, but you will be able to hear it, faintly. You need a wideband on the car, man. Otherwise you are flyin' blind. You are running 93 octane in the car, right?? If not, I feel sorry for your mother...

Just because its throwing a misfire code doesnt make it so? Are you kidding me? Do you know how an OBD2 system works? If it throwing a code than it has misfired..and misfired enough for the ecu to say, "hey wtf, lets let this guy know somethings wrong".

misfires  only at idle. otherwise its perfect. no detonation. no  o2 sensors. too hard  to hear a vac  leak cuz there isnt an exhaust. im drivin as little as possible...exhaust n sensors will be  on  in 2 weeks. ill narrow it down after the tune. and come  back with more info. sry  im on my phone...

Redline, I'm jumping in late but here's my two cents.  I'm not sure if you have a wideband, but if not please get one and get a base map started.  With the wrx 440's in and no o2 sensors you will be running pig rich at idle and every where else for that matter.  I'm talking 10's-12's easy at idle and you might be seeing 9's under partial throttle.  Your plugs being doused out by too much fuel will cause a missfire.   Also if you do see 9's your could be seeing a cylinder washout which is a whole other issue.   Last but not least, running pig rich will cause your oil to degrade twice as quickly.....
Exhaust and/or tune, change oil, then you can start to diagnose the ses lights that MAY still be there.  I have a hunch you tune your car the misfire will go away.....

preston shut the fuck up. Pregunta is telling him his best intrest is to do what he said. And he descibed what is EXACTLEY happing with his car right now, and if he keeps driving it he is going to risk fucking shit up worse. Sorry for flying off the handle but fuck! People need to pay attention and think before they write shit. damn. I still you preston LMAO

jaja  once i get my exhaust ill get my wideband back from preston

Black04SpecV wrote:

silverspec wrote:

If it throwing a code than it has misfired..and misfired enough for the ecu to say, "hey wtf, lets let this guy know somethings wrong".

ROFL... you are so wrong its not even funny.

I have had P0300 code ever since I installed my JWT cams. That was TWO years ago. Does that mean that my car has actually misfired? No it doesn't... My car never misfired

This off-topic but that shouldn't be the case. Sounds like you are off a tooth, I've never had a code with my cams and you shouldn't either. We had a huge deal with this way back on the V-board and that was the classic tell tail sign, P0300.