Multiple problems with my FI twin turbo 370z

LJTTZ · 09-17-2016, 12:03 PM

My car started to misfire randomly but stopped a short while later and drove normally through the rest of the day. I left the car off for about a week, when I went back to drive it the vdc lights came on and it wouldn't rev past 2500 rpms. Has anyone had this problem like this the misfire happens and then it goes right away, could it be injectors? I don't really have a idea why it wouldn't rev past 2500. my car has 26k boosted miles on it, and has always been ran at 7 lbs of boost. Could any of this be a sign that the engine is about to go?

RadioFlyer · 09-17-2016, 12:33 PM

Is it throwing any codes?

Jinxx · 09-18-2016, 08:05 PM

Sounds more like tuning issues ....are you using uprev or ecutek ....where was it tuned ? Anywhere local ....also any chance of maf sensors getting wet or maybe air filter oil on them ....
I did get my maf sensors wet and it did something similar until they dried and I reset everything and reflashed the pcm

bullitt5897 · 09-19-2016, 09:42 AM

Quote:

Originally Posted by Jinxx

Sounds more like tuning issues ....are you using uprev or ecutek ....where was it tuned ? Anywhere local ....also any chance of maf sensors getting wet or maybe air filter oil on them ....
I did get my maf sensors wet and it did something similar until they dried and I reset everything and reflashed the pcm

definitely sounds like a tuning issue or MAF issue. Your in limp mode right now.

hjo1078 · 09-20-2016, 02:00 PM

might sound dumb but is it on valet mode ? And have you changed your spark plugs in the 26k miles you been boosted ?

JARblue · 09-20-2016, 03:56 PM

Who was your tuner?

LJTTZ · 09-29-2016, 02:01 AM

It was tuned by rdz motor sports in Connecticut, it's going to soho in Charlotte next week to see what could be wrong. Appreciate the input u guys hopefully nothing to major.

LJTTZ · 09-29-2016, 02:23 AM

Also I pulled plugs and they looked clean

Juan@Fontana · 10-21-2016, 07:19 PM

was it missfiring under load, at idle, or cruising?

09-17-2016, 12:03 PM	#1 (permalink)
LJTTZ Base Member Join Date: Aug 2016 Location: SC Posts: 3 Drives: 2010 370z Rep Power: 9	Multiple problems with my FI twin turbo 370z My car started to misfire randomly but stopped a short while later and drove normally through the rest of the day. I left the car off for about a week, when I went back to drive it the vdc lights came on and it wouldn't rev past 2500 rpms. Has anyone had this problem like this the misfire happens and then it goes right away, could it be injectors? I don't really have a idea why it wouldn't rev past 2500. my car has 26k boosted miles on it, and has always been ran at 7 lbs of boost. Could any of this be a sign that the engine is about to go?

09-18-2016, 08:05 PM	#3 (permalink)
Jinxx Track Member Join Date: Dec 2015 Location: South Carolina Posts: 699 Drives: 2017 nismo 370z Rep Power: 3376	Sounds more like tuning issues ....are you using uprev or ecutek ....where was it tuned ? Anywhere local ....also any chance of maf sensors getting wet or maybe air filter oil on them .... I did get my maf sensors wet and it did something similar until they dried and I reset everything and reflashed the pcm bullitt5897 and jaytirbhaw like this.

09-20-2016, 02:00 PM	#5 (permalink)
hjo1078 Track Member Join Date: May 2011 Location: virginia Age: 46 Posts: 572 Drives: twin turbo 370z Rep Power: 5395	might sound dumb but is it on valet mode ? And have you changed your spark plugs in the 26k miles you been boosted ? Hotrodz likes this.

09-20-2016, 03:56 PM	#6 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	Who was your tuner? __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

10-21-2016, 07:19 PM	#9 (permalink)
Juan@Fontana Enthusiast Member Join Date: Nov 2013 Location: Fontana Posts: 315 Drives: Z32 Rep Power: 22	was it missfiring under load, at idle, or cruising? __________________ Juan Vargas jvargas@fontananissan.com Motorsports Manager, Tech Support & EMS Specialist. https://www.nissanraceshop.com/wp-co...ite-Header.png

09-17-2016, 12:33 PM	#2 (permalink)
RadioFlyer Base Member Join Date: Aug 2014 Location: Los Angeles, CA. Posts: 193 Drives: 08 G37S S/C Rep Power: 40	Is it throwing any codes?

09-29-2016, 02:01 AM	#7 (permalink)
LJTTZ Base Member Join Date: Aug 2016 Location: SC Posts: 3 Drives: 2010 370z Rep Power: 9	It was tuned by rdz motor sports in Connecticut, it's going to soho in Charlotte next week to see what could be wrong. Appreciate the input u guys hopefully nothing to major.

09-29-2016, 02:23 AM	#8 (permalink)
LJTTZ Base Member Join Date: Aug 2016 Location: SC Posts: 3 Drives: 2010 370z Rep Power: 9	Also I pulled plugs and they looked clean

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