Loss acceleration.... Help...

roplusbee · 01-21-2014, 01:14 PM

Wow. So when you say no codes, does that mean that you checked with a code reader? Did you notice the coolant dots go past half way? Was the oil temp in the 240-260 range? Do you have some suspect wiring going on behind your dash?

There are plenty of things that can send this car into limp mode.

juld0zer · 06-11-2014, 11:23 PM

same problem as me, mate: HELP! Severe acceleration lag

Except i have mods and software tweaks but if it's happening to you when you were stock then that just makes it more bizarre. It happened last night so i went straight home to pick up my laptop and uprev cable to datalog. It took effort to not stall the motor because it was bogging so badly. But stalling would've reset the issue.

Anyway, from the logs i notice the intake cams are locked at 0 degrees in the troublesome rev range. Compared to logs done recently, the cams should not be at 0 degrees under similar conditions.

I got no CEL or any error codes either. My scanguage detected no pending codes so from the ECU's perspective, everything is in check. No sensors chucking a wonky reading. It's as if the ECU is demanding the power restriction. But whyyyyyyyyyy!?!?!

Super Werty · 06-11-2014, 11:30 PM

It's been happening to mine as well. It's annoying. Not sure if there is anything I can do to fix it.

zefaulter · 06-12-2014, 12:32 AM

Why are you guys not mentioning the oil temp when this happens?

juld0zer · 06-12-2014, 01:07 AM

my oil temp was no more than 92*c and coolant temp max 95. i'll post the logs up tonight for some of the brains here to analyse

ZeN · 06-12-2014, 01:02 PM

let me guess, it goes into safe map on the uprev ? Dont know what would trigger that. Knock maybe ?

juld0zer · 06-12-2014, 06:26 PM

safe map?

01-21-2014, 01:14 PM	#16 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 22	Wow. So when you say no codes, does that mean that you checked with a code reader? Did you notice the coolant dots go past half way? Was the oil temp in the 240-260 range? Do you have some suspect wiring going on behind your dash? There are plenty of things that can send this car into limp mode. __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

06-11-2014, 11:30 PM	#18 (permalink)
Super Werty Track Member Join Date: Jul 2013 Location: AZ Posts: 668 Drives: '13 Sport Rep Power: 13	It's been happening to mine as well. It's annoying. Not sure if there is anything I can do to fix it. __________________ The Build

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06-11-2014, 11:23 PM	#17 (permalink)
juld0zer Enthusiast Member Join Date: Nov 2012 Location: Sydney Posts: 428 Drives: 11 Nissan 370Z MB M6 Rep Power: 139	same problem as me, mate: HELP! Severe acceleration lag Except i have mods and software tweaks but if it's happening to you when you were stock then that just makes it more bizarre. It happened last night so i went straight home to pick up my laptop and uprev cable to datalog. It took effort to not stall the motor because it was bogging so badly. But stalling would've reset the issue. Anyway, from the logs i notice the intake cams are locked at 0 degrees in the troublesome rev range. Compared to logs done recently, the cams should not be at 0 degrees under similar conditions. I got no CEL or any error codes either. My scanguage detected no pending codes so from the ECU's perspective, everything is in check. No sensors chucking a wonky reading. It's as if the ECU is demanding the power restriction. But whyyyyyyyyyy!?!?!

06-12-2014, 12:32 AM	#19 (permalink)
zefaulter A True Z Fanatic Join Date: Jan 2013 Location: Toronto, Canada Posts: 1,983 Drives: 40th 370Z Rep Power: 27	Why are you guys not mentioning the oil temp when this happens?

06-12-2014, 01:07 AM	#20 (permalink)
juld0zer Enthusiast Member Join Date: Nov 2012 Location: Sydney Posts: 428 Drives: 11 Nissan 370Z MB M6 Rep Power: 139	my oil temp was no more than 92*c and coolant temp max 95. i'll post the logs up tonight for some of the brains here to analyse

06-12-2014, 01:02 PM	#21 (permalink)
ZeN Base Member Join Date: Apr 2011 Location: Malaysia Posts: 116 Drives: 09 PW 7AT 370z Rep Power: 14	let me guess, it goes into safe map on the uprev ? Dont know what would trigger that. Knock maybe ?

06-12-2014, 06:26 PM	#22 (permalink)
juld0zer Enthusiast Member Join Date: Nov 2012 Location: Sydney Posts: 428 Drives: 11 Nissan 370Z MB M6 Rep Power: 139	safe map?