Sudden power loss

DEpointfive0 · 03-31-2013, 08:27 PM

Quote:

Originally Posted by Yutnaka

The highest rpm that i can go to is 3500. My idle is just below or right at 1500. Warranty should cover this right? I am still under warranty...the problem is getting my car there.

JEEZUS, your idle is high
You can have them tow it on their dime

Yutnaka · 03-31-2013, 08:30 PM

I will start the car tomorrow and see if it is ok. If not, I will have it towed.

Yutnaka · 04-01-2013, 06:30 AM

Update: made it to the dealership in one piece. I notice when I was backing up that the reverse gear was slipping to go in...this cant be good.

DEpointfive0 · 04-01-2013, 06:33 AM

Slipping to go IN makes me feel like it's the valve body
Transmissions aren't made the way they used to be

Yutnaka · 04-01-2013, 06:38 AM

Definately. Its always been rough shifting to 4th even when new. Especially when the summer temps and the fluid temperatures would rise. Maybe I should get an additonal transmission cooler on top of the one in the radiator.

Yutnaka · 04-02-2013, 10:41 AM

Update: so I got my car back, and the receipt from the work order basically said that i needed to get a tune. So far no CEL light and it's running fine. Uprev tune is in order!

Baer383 · 04-02-2013, 10:51 AM

Quote:

Originally Posted by Yutnaka

Update: so I got my car back, and the receipt from the work order basically said that i needed to get a tune. So far no CEL light and it's running fine. Uprev tune is in order!

I'll take that as I was right

Glad your problem is small and can be fixed.

Yutnaka · 04-02-2013, 10:55 AM

yes thank you Baer! do you think If I got a CEL fix that a tune can be avoided?

Baer383 · 04-02-2013, 11:06 AM

Quote:

Originally Posted by Yutnaka

yes thank you Baer! do you think If I got a CEL fix that a tune can be avoided?

Yeah in The Uprev software there are a list of DTC that can be turned off so the light doesn't come back on.

Osiris · 04-02-2013, 11:06 AM

So what was it that they changed?

SouthArk370Z · 04-02-2013, 11:16 AM

Quote:

Originally Posted by Osiris

So what was it that they changed?

If it just said that you needed a tune and they didn't actually tune it, then most likely all they did was clear the error code. If that's what they did, there is a good chance that the CEL will return.

Yutnaka · 04-02-2013, 11:35 AM

The tech said that my cel came from the test pipe. I am wondering if a mechanical cel fix would work to prevent this even without a tune. Any thoughts?

Osiris · 04-02-2013, 11:50 AM

Quote:

Originally Posted by Yutnaka

Any thoughts?

yes, call them on the phone and ask for the code you were getting.

SouthArk370Z · 04-02-2013, 11:52 AM

Quote:

Originally Posted by Yutnaka

The tech said that my cel came from the test pipe. I am wondering if a mechanical cel fix would work to prevent this even without a tune. Any thoughts?

You're dealing with a high-strung engine that doesn't take well to mods. Just about any mod that will give a decent increase in power will confuse the ECM and trip a CEL.

Baer383 is right - if you are going to mod, you need tuning software to support your efforts. The ECM will only self-adjust so far before it thinks something is wrong. With tuning software, you can change ECM setpoints and coefficients to values that match your mods. It will also be a tremendous help when it comes to troubleshooting.
Most of the tuning software packages offer the ability to turn off some functions that trigger a CEL.

Yutnaka · 04-03-2013, 09:52 AM

Thank you all for your help. I"ve scheduled an Uprev tuning session at Z1 Motorsports this Saturday. Can't wait for the results!

03-31-2013, 08:30 PM	#47 (permalink)
Yutnaka Base Member Join Date: Apr 2011 Location: Columbus, GA Posts: 212 Drives: 2011 370z 7at GM Rep Power: 14	I will start the car tomorrow and see if it is ok. If not, I will have it towed. __________________ Z1 Test Pipes, AAM S-Line Midpipe, Nismo Axleback, Takeda CAI, JDM fog light, Avant Garde M310 matte black, Tein springs, uprev 310whp-SOLD!

04-01-2013, 06:30 AM	#48 (permalink)
Yutnaka Base Member Join Date: Apr 2011 Location: Columbus, GA Posts: 212 Drives: 2011 370z 7at GM Rep Power: 14	Update: made it to the dealership in one piece. I notice when I was backing up that the reverse gear was slipping to go in...this cant be good. __________________ Z1 Test Pipes, AAM S-Line Midpipe, Nismo Axleback, Takeda CAI, JDM fog light, Avant Garde M310 matte black, Tein springs, uprev 310whp-SOLD!

04-01-2013, 06:33 AM	#49 (permalink)
DEpointfive0 A True Z Fanatic Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17152	Slipping to go IN makes me feel like it's the valve body Transmissions aren't made the way they used to be __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

04-01-2013, 06:38 AM	#50 (permalink)
Yutnaka Base Member Join Date: Apr 2011 Location: Columbus, GA Posts: 212 Drives: 2011 370z 7at GM Rep Power: 14	Definately. Its always been rough shifting to 4th even when new. Especially when the summer temps and the fluid temperatures would rise. Maybe I should get an additonal transmission cooler on top of the one in the radiator. __________________ Z1 Test Pipes, AAM S-Line Midpipe, Nismo Axleback, Takeda CAI, JDM fog light, Avant Garde M310 matte black, Tein springs, uprev 310whp-SOLD!

04-02-2013, 10:41 AM	#51 (permalink)
Yutnaka Base Member Join Date: Apr 2011 Location: Columbus, GA Posts: 212 Drives: 2011 370z 7at GM Rep Power: 14	Update: so I got my car back, and the receipt from the work order basically said that i needed to get a tune. So far no CEL light and it's running fine. Uprev tune is in order! __________________ Z1 Test Pipes, AAM S-Line Midpipe, Nismo Axleback, Takeda CAI, JDM fog light, Avant Garde M310 matte black, Tein springs, uprev 310whp-SOLD!

04-02-2013, 10:55 AM	#53 (permalink)
Yutnaka Base Member Join Date: Apr 2011 Location: Columbus, GA Posts: 212 Drives: 2011 370z 7at GM Rep Power: 14	yes thank you Baer! do you think If I got a CEL fix that a tune can be avoided? __________________ Z1 Test Pipes, AAM S-Line Midpipe, Nismo Axleback, Takeda CAI, JDM fog light, Avant Garde M310 matte black, Tein springs, uprev 310whp-SOLD!

04-02-2013, 11:06 AM	#55 (permalink)
Osiris A True Z Fanatic Join Date: Mar 2009 Location: http://www.cfzclub.com/ Posts: 1,524 Drives: Angry Rep Power: 20	So what was it that they changed? __________________ ^^^^^^^^^Like our Facebook!^^^^^^^^^

04-02-2013, 11:35 AM	#57 (permalink)
Yutnaka Base Member Join Date: Apr 2011 Location: Columbus, GA Posts: 212 Drives: 2011 370z 7at GM Rep Power: 14	The tech said that my cel came from the test pipe. I am wondering if a mechanical cel fix would work to prevent this even without a tune. Any thoughts? __________________ Z1 Test Pipes, AAM S-Line Midpipe, Nismo Axleback, Takeda CAI, JDM fog light, Avant Garde M310 matte black, Tein springs, uprev 310whp-SOLD!

04-03-2013, 09:52 AM	#60 (permalink)
Yutnaka Base Member Join Date: Apr 2011 Location: Columbus, GA Posts: 212 Drives: 2011 370z 7at GM Rep Power: 14	Thank you all for your help. I"ve scheduled an Uprev tuning session at Z1 Motorsports this Saturday. Can't wait for the results! __________________ Z1 Test Pipes, AAM S-Line Midpipe, Nismo Axleback, Takeda CAI, JDM fog light, Avant Garde M310 matte black, Tein springs, uprev 310whp-SOLD!

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