In some serious trouble, it broke...
 

Well as life goes its you know what on me...It 10days before I get my car tuned and just started having a major issue last night, was driving along and the car developed a harsh, I mean harsh vibration most pronounced at 2k rpms, its like a bent wheel but worse, I am thinking it is internal in the engine, which would suck, and I would probably part the car, fix it and move on with life, just because this stuff seems to happen to me.
some info: Its on the BP turbo kit, wastegate spring pressure, AFR is fine never when out normal, I checked the log. The car does not have to be moving, does it on a lift(there now) clutch in or out makes no difference. THe engine seems to run fin, no codes, sounds normal as ever. Any insight would be great...I also have z1 mounts, nothing came loose or anything of the sort, vibration seems to carry excessivly to the front of the transmision, but I peared into the check hole, nothing looks out of kilter to the untrained eye...sigh, maybe this is a sigh, time to quit.

Are you sure it's internal? Could something be loose/rubbing on something else? I would think that something this noticable would at the very least throw a P0300.

Driveshaft out of balance?

that's what she said
owait :wtf2:

Ya I would.think it would throw a code I been prying on stuff all morning in hopes to fine something stupid no luck so far. It does it with the car sitting no driveshaft movement

Ouch, I hope it's an easy fix man. No codes and if your motor is good it shouldn't be too detrimental, don't get discouraged

Without any codes, or any readings out of place my wild *** guess is that it's not anything terminal. With as much new piping as you've put in a small space, I'm guessing it's a clearance issue. How much did swapping the header flange change the piping downstream? Is everything still in the same place?

If it was a crank vibration your crank angle sensor would pick it up. Did you get the tune from Sasha? Might not be a bad idea to check with him to see if the P0300 code is turned off with the uprev? I know for a fact that even with my launch control on my car does not throw the P0300. I would suggest flashing it back to stock (only to idle it) and seeing what type of codes you have at that point.

The car should start and idle even with the aftermarket injectors, its a quick easy check for you.

Hope that helps,

Goodluck!

Even if the P0300 was disabled, an internal engine problem would still generate the cylinder-specific misfire code, right?

Not that it is doing any good, just took the IM off, going to check all the plugs and look around for anything fishy...

I think Nissan would like to think so, but I doubt it would in reality work like that.

I'm just going off what my tuner explained to me. I could be way off base.

I know, I am just going off my knowledge of other vehicles. I really could not say one way or another if the Z would pick up on specific misfires accurately enough to trip a code. I could be wrong.

Either way it was just an idea for the OP to try out.

:tiphat:

Yeah, we're all just spitballing without a video or some kind of recording.

In for video