In some serious trouble, it broke...

Joepro · 04-01-2014, 07:39 AM

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.

Chuck33079 · 04-01-2014, 07:43 AM

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.

falconfixer · 04-01-2014, 08:01 AM

Driveshaft out of balance?

Solomatrix · 04-01-2014, 08:02 AM

that's what she said
owait

Joepro · 04-01-2014, 08:14 AM

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

jaytirbhaw · 04-01-2014, 08:20 AM

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

Chuck33079 · 04-01-2014, 08:24 AM

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?

Mitco39 · 04-01-2014, 09:19 AM

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!

Chuck33079 · 04-01-2014, 10:11 AM

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

Joepro · 04-01-2014, 10:16 AM

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

Mitco39 · 04-01-2014, 10:19 AM

Quote:

Originally Posted by Chuck33079

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

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

Chuck33079 · 04-01-2014, 10:22 AM

Quote:

Originally Posted by Mitco39

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.

Mitco39 · 04-01-2014, 10:28 AM

Quote:

Originally Posted by Chuck33079

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.

Chuck33079 · 04-01-2014, 10:36 AM

Quote:

Originally Posted by Mitco39

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.

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

jwick · 04-01-2014, 10:45 AM

Quote:

Originally Posted by Chuck33079

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

In for video

04-01-2014, 07:39 AM	#1 (permalink)
Joepro A True Z Fanatic Join Date: Aug 2012 Location: Athens ohio Posts: 1,213 Drives: Company car Rep Power: 33	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. __________________ Swift\|Koni\|SPC\| FI CBE\|Z1\|Stillen\|Sbend\|Zspeed\|R/T Tuned\|523 whp\|458 tq\|10.5 psi\|SOLD Joepro's Journal\|Joepro's Boosted Performance Build \|Pittsburgh-Western-Pa-Ohio-Wv-Group

04-01-2014, 07:43 AM	#2 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	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. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

04-01-2014, 08:02 AM	#4 (permalink)
Solomatrix A True Z Fanatic Join Date: Mar 2014 Location: crispy bacon Posts: 3,236 Drives: sizzling bacon Rep Power: 858	that's what she said owait DOOMMONKEY777 and Z370Z011 like this.

04-01-2014, 08:14 AM	#5 (permalink)
Joepro A True Z Fanatic Join Date: Aug 2012 Location: Athens ohio Posts: 1,213 Drives: Company car Rep Power: 33	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 __________________ Swift\|Koni\|SPC\| FI CBE\|Z1\|Stillen\|Sbend\|Zspeed\|R/T Tuned\|523 whp\|458 tq\|10.5 psi\|SOLD Joepro's Journal\|Joepro's Boosted Performance Build \|Pittsburgh-Western-Pa-Ohio-Wv-Group

04-01-2014, 08:24 AM	#7 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	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? __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

04-01-2014, 08:01 AM	#3 (permalink)
falconfixer Track Member Join Date: Feb 2012 Location: 10aC Posts: 978 Drives: Taco Rep Power: 76	Driveshaft out of balance?

04-01-2014, 08:20 AM	#6 (permalink)
jaytirbhaw Track Member Join Date: Dec 2009 Location: NYC Posts: 814 Drives: 350z HR , Nismo 370z Rep Power: 16	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

04-01-2014, 09:19 AM	#8 (permalink)
Mitco39 A True Z Fanatic Join Date: Aug 2012 Location: Edmonton Alberta Canada Posts: 2,089 Drives: 40th 370z Rep Power: 131	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! __________________ 2007 Chevy Duramax - EFILive Tuned By Me 2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her My Build --> http://www.the370z.com/members-370z-...39s-build.html

04-01-2014, 10:11 AM	#9 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	Even if the P0300 was disabled, an internal engine problem would still generate the cylinder-specific misfire code, right? __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

04-01-2014, 10:16 AM	#10 (permalink)
Joepro A True Z Fanatic Join Date: Aug 2012 Location: Athens ohio Posts: 1,213 Drives: Company car Rep Power: 33	Not that it is doing any good, just took the IM off, going to check all the plugs and look around for anything fishy... __________________ Swift\|Koni\|SPC\| FI CBE\|Z1\|Stillen\|Sbend\|Zspeed\|R/T Tuned\|523 whp\|458 tq\|10.5 psi\|SOLD Joepro's Journal\|Joepro's Boosted Performance Build \|Pittsburgh-Western-Pa-Ohio-Wv-Group

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