Ok, stupid question- how many miles since you installed the kit?

That would be a logical question to ask, lol.

:rofl2: I know, right? And we all missed it. If it was 1 mile, probably an install issue. If it was 1k miles, probably not an install issue. :rofl2:

If I recall properly he did some data logging so not 1 mile but the kit hasn't been on long so most likely not a thousand.

989 miles, had some other tech come over from acura, they agree the motor sounds fine,they said it acts like a broken chain on a balancer shaft but Ididnt think our motors have one?they all agree its roational not air/fuel, one think I should drop the trans and look at the flywheel. I also looked atthe log when it happed, the a/f boost were all normal.

I didn't think we had a balancer either. The only chain I can think of is the timing chain, and you'd know if that broke. If the pulley's on right, the next thing to check would be the flywheel. It's got to be either something spinning or something making contact where it shouldn't.

I swaped the pulley,had a stillen on it no affect what so ever. Ya itf the timing chain broke well ya haha, seen those before.

And if your flywheel was to blame I would expect you to see a bunch of codes related to the crank angle sensor.

How did the oil checkout? I cant think of anything else that would cause your issues. Was it an instant change? or just got worse over a few miles?

Instant change I didnt see anything in the oil I drained abd filtered a gallon, im losing my mind

If the oil, afr etc all look normal I'd go ahead and assume the motor's fine. Now you have to check everything bolted to it.

On the upside, with everything you cross off the possibility list, the less expensive it would seem to be getting.

Its still quite frustrating esp when a bunch of techs have no idea...got my nissan connections working now but I'm so mentally exhausted.

Is there any way to verify if the poly inside the motor mount disintegrated? Personally I'd check everything else off the list before I pulled the transmission.

Can you look at the afrs of each bank with uprev and just double check that they are in spec? I am still thinking one of the banks is messing up in one way or another and giving you that vibration.

I know its not the same engine or even close to the same. But on the Chevy diesel engines some of the models are known for their injector harnesses rubbing through causing 2 or more injectors to stop working, and when that happens it 100% looks like the engine just popped. Its amazing what a couple dead cylinders do to the harmonics of the engine.

My train of though is if you see if the bank is running very lean (injectors) if you see it is running very rich (spark). If both banks seem to be pretty close to each other than that train of thought goes out the window.

Just another thing to try.

Goodluck

Yeah good luck with dealer techs good ones are few and far between nowadays when the ish gets complicated like this. The manual does say you have air leaks if it is throwing p0507. Might have happened during your troubleshooting when you pulled the manifold.

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I dont have uprev to monitor with rt flashed my ecu I mailed it to them

I took the bottom bolts out of the mounts and jacked up that assembly no change.

sub'd for the results at this point.

Sounds like it may be time to pull the tranny and see if your clutch or flywheel **** the bed. Otherwise, track down somebody local with an Uprev cable and Cypher loaded on their laptop.

Any cable will work since you already have a license. Cipher will tell you if it's got any stored codes.

well I threw in the towel for today, 74 degrees outside and I was stuck in the shop with a broken car, btw, my 2 techs one has a 530 whp 11 second neon build from the groud up from a wrenched neon, 5 years in the making so far, and the other has a 500 + whp vette, so I value both of their opinions, great guys they are! I gonna borrow a noise/vibration analyzer from our GM store, im not gonna hold my breath with it but it supposed to be able to tell you the type of vibration by its frequency and oscillation...btw the scanner was universal but it reads live data, I couldn't see anything out of the ordinary.

Talk about mind boggling.

This problem IMO is one of 2 things:

1. Seeing as Selena Gomez is on top of the page and it's the 1st of April, you're pulling our leg and your car is actually fine. I hope this is the case.

or 2. Clutch/Flywheel defect. You lost a balancing weight, a piece of the clutch disc broke off or one of the pressure plate fingers is damaged (unlikely). All of these wouldn't show visual signs threw the peep hole in the trans, probably not much more noise and possibly wouldn't affect the Crank Sensor as it would only offset the weight on one side affecting the centrifugal force and not the rotational speed of the engine. Add the extra stiff mounts and you get a pleasant shutter in the car that is worst at certain RPMs (frequencies).

I would pull the transmission, specially if you have access to a lift and a transmission jack.

Trans pull is the current avenue, its on a lift at work, today was my day off, I have a southbend clutch/flywheel setup so I am not sure how the flywheel is weighted, I work through the rest of the week but I will try to work on it an hour or 2 in the afternoon, after the turbo parts are out of the way I can drop the trans pretty fast, I really hope thats it so I can get something in and make my tune date.

Maybe give Joe at Zspeed a call and quiz him on the flywheels and if he thinks it even possible for something like that to happen. It might be possible I guess if there is some sort of balancing weights on the flywheel. I cant remember mine when I installed it, I didnt play that close of attention to it.

Well I wasted all day yesterday, but found it, the pressure plate broke.

As weird as it sounds to say, I'm really happy for you. That's a much cheaper and easier fix than something internal to the motor. It had to have been a manufacturing defect, right? 1k miles of boost on the canned tune shouldn't kill a clutch.

Nice glad you figured what's going on

didnt we just have a fellow member with a broken clutch issue? what brand was that?

Joe took care of me I I knew he would, I did upgrade the disk, but he called Southbend for me and is getting it replaced!

Good deal, man. Can you still make your tune assuming the parts get to you soon?

Ya should have the parts by the weekend hopefully back together sat should give me enough time to break it in.

Glad to hear man. Thats awesome news!

Glad to hear you found the problem before clutch fragments started flying through the bellhousing and cutting limbs. good luck with the tune!

-Juan

snap went the strap...

http://i609.photobucket.com/albums/t...ps0rv7uqgw.jpg

Glad its just the plate. I think the other guy who had a broken clutch had a Southbend also but it was the disc that fragmented.

Are they sending you a whole new clutch assembly w/ a new flywheel or are they just replacing the pressure plate?

Flywheel is fine as is the disk, but I am replacing the disk anyway since it is apart. S%t breaks, Shane at work has broke 4 clutches in 2 years with his neon, one ACT,another single disk I forget the brand, and broke a pressure plate and a disk twice on a clutch masters twin disk...

Hey Joepro, I like how you painted your engine/intake cover to match your car. I would paint mine but my car is platinum grey/silver already...

PS Don't forget to change the CSC, I think it gets extended onto the dirty part of the sleeve when the bell housing is pulled and the O-Ring picks up serious contamination.

I have a zspeed csc in there an It doesn't have a ton of miles on it, im gonna roll with it.

glad its nothing serious!