[seetully]

Ok, so yesterday a few of us got together to do my spark plugs, er cp/synapse BOV, and ww meth kit.

Unplug the battery on the car, start getting to work...first we do spark plugs..then install the charge pipe, continuing the work on the meth kit a little bit as well.

My friend is doing the check valve and is cutting the windshield washer line behind the cabin air filter so he can place it in there. Well, he mistook the large bundle of wires for the rubber ww hosing and sliced right through it.

Here is a picture of where the small bundle of wires can be found..it seems to run into the firewall on both ends...


I proceeded to take the heatshrink off of these 5 or so wires and start splicing them back into each other. I then wrapped the whole thing back up in electrical tape.

Well, i was curious to see what these wires were for and if they were going to damage my vehicle in any way if they since they were just cut. I go to turn my vehicle on and its idling extremely rough, and the RPMS like im pressing the gas, but im not..and then drop down drastically..the car sounded horrible so i shut it off immediately and hooked up to the JB4

Also just so its clear i havent done any splicing into the JB4 yet for the meth kit, the tune has been left completely alone since we started the work.

Car threw these 2 codes....

2EE6
29d0 - Misfire cylinder 4


Troubleshooting:

We swapped coils thinking possibly it could just be that crazy that one would go bad..fired the car back up and no luck..immediately threw the codes again for misfire on cylinder 4...also tried swapping plugs with no avail. Obviously we would clear codes between.


Im really at a loss for what to do. Prior to putting the new charge pipe/ bov and spark plugs the car was running great on the drive over to his house and has been running great the last few weeks...no symptoms or signs of anything...

Could this have anything to do with those wires?

Could it have to do with a dirty MAP sensor?

Any help would be greatly appreciated!

[Beemw335]

Make sure you reconnected all the wires properly.
Look over them with a lot of attention, once you have them back together properly go from there.
Btw a rubber hose is hollow, I really dont knkw how your friend could mistake thag for a bunch of wires...best of luck with the issue.

[cn555ic]

Wires are for winshield wiper motor and automatic rain sensors. Nothing to do with performance. You guys messed up something else. Hope you didn't break the vacuum nipple to the intake manifold

[seetully]

Originally Posted by cn555ic

Wires are for winshield wiper motor and automatic rain sensors. Nothing to do with performance. You guys messed up something else. Hope you didn't break the vacuum nipple to the intake manifold

your speaking of the vacuum nipple to the intake manifold that the vacuum line from the BOV attatches to? That is perfectly in tact..

[Velocity26]

2EE6 is coolant temperature sensor - metering range - It appears that it was left unplugged after the work?

[seetully]

what was left unplugged velocity?

dont know what your talking about..

[GeorgiaTech335coupe]

Did you recheck the spark plug in that cylinder to make sure it was properly installed? You said it threw the misfire code after putting in new plugs. That would be the first thing I'd check.

[bigdnno98]

Yup even put the old one back in to see if we got a bad plug. No dice. Then put the new one back in.

[Velocity26]

Originally Posted by ctu11y

what was left unplugged velocity?

dont know what your talking about..

Just saying what the code reads, no need to get hostile!

Figure it out yourself smart ass.

[cn555ic]

Originally Posted by Velocity26

Just saying what the code reads, no need to get hostile!

Figure it out yourself smart ass.

I don't think he meant it that way. He was asking what sensor!

[GeorgiaTech335coupe]

misfires on startup immediately make me think injector from the long experience I have with misfires. It's just odd that it came all of a sudden.

[Velocity26]

Originally Posted by cn555ic

I don't think he meant it that way. He was asking what sensor!

I misread his response, I apoplgise.

[bigdnno98]

Ok. Problem solved. First off we learned today that cylinder order and firing order are not the same thing. Missfire in CYL 4 means the fourth CYL from the front bumper not no 4 in the firing order, so when we double checked the plug in the suspected CYL it was really CYL 6 we were checking (firing order 4). Turns out the brand new plug was bad. the prongs were literally touching the middle part. (don't remember what it's called.) put the old plug back in CYL 4 and it worked fine. the other codes were becuase the battery was dying while we were doing all this and the car was going crazy. CP/BOV installed... new plugs (except for CYL 4).... and WW Meth kit installed. Chris says the car is a beast. haven't ridden in it yet but we learned quite a lot about the car over the last 24 hours! LOL

[GeorgiaTech335coupe]

Originally Posted by bigdnno98

Ok. Problem solved. First off we learned today that cylinder order and firing order are not the same thing. Missfire in CYL 4 means the fourth CYL from the front bumper not no 4 in the firing order, so when we double checked the plug in the suspected CYL it was really CYL 6 we were checking (firing order 4). Turns out the brand new plug was bad. the prongs were literally touching the middle part. (don't remember what it's called.) put the old plug back in CYL 4 and it worked fine. the other codes were becuase the battery was dying while we were doing all this and the car was going crazy. CP/BOV installed... new plugs (except for CYL 4).... and WW Meth kit installed. Chris says the car is a beast. haven't ridden in it yet but we learned quite a lot about the car over the last 24 hours! LOL

So you are saying that a misfire cylinder 4 means that something is going wront in cylinder 6 (cylinder closest to passenger cabin)? I don't think that's true. I have replaced 6 injectors at separate times, 4 coils at separate times, and the code always pertained to # cylinder. What i think happend is that since your #6 was bad it through a code in that bank of cylinders which made 4 throw the code. A bad cylinder might not throw a code but will throw the AFR off in that bank, making all the cylinders go awry. Either way, I'm glad you got your car fixed. If anyone here knows misfire troubles, it's me.

[vase330]

Originally Posted by bigdnno98

Ok. Problem solved. First off we learned today that cylinder order and firing order are not the same thing. Missfire in CYL 4 means the fourth CYL from the front bumper not no 4 in the firing order, so when we double checked the plug in the suspected CYL it was really CYL 6 we were checking (firing order 4). Turns out the brand new plug was bad. the prongs were literally touching the middle part. (don't remember what it's called.) put the old plug back in CYL 4 and it worked fine. the other codes were becuase the battery was dying while we were doing all this and the car was going crazy. CP/BOV installed... new plugs (except for CYL 4).... and WW Meth kit installed. Chris says the car is a beast. haven't ridden in it yet but we learned quite a lot about the car over the last 24 hours! LOL

You mean prongs were touching the center electrode. You now have one old used plug in the car? I would adjust the gap on the new plug or get a new one and put it in if I were you.

[bigdnno98]

yeah, it was the fourth CYL from the front bumper. the one closest to the firewall is NO 4 in the firing order. when the car shows a code for missfire we thought it was firing order no but obviously its as simple as 1-6 bumper to the firewall. He's getting a new plug to replace the bad one. He's not going to bother trying to regap the bad one. not worth it for less than $20. thank you guys for all of your advice.

[JMARS]

Do you think when you were doing the bov install you might have unplugged the Wires/clip that goes to the charge pipe (i think its like a IAT sensor)...? Just a thought

[bigdnno98]

All is well. It was a bad plug and dying battery that caused all of this mischief. Dying batteries really make the car go crazy.