Nissan 370Z Forum  

Acceleration Surge After about 5 mins

could be an intermittent vac leak anywhere before or just after the primary O2's. The surge would be from the ECU dumping in extra fuel to try and maintain stoichiometry

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain


Like Tree1Likes
  • 1 Post By

Reply
 
LinkBack Thread Tools Display Modes
Old 01-27-2013, 03:45 PM   #1 (permalink)
A True Z Fanatic
 
Jordo!'s Avatar
 
Join Date: May 2010
Location: nirvana
Posts: 6,394
Drives: 2023 NATM
Rep Power: 419
Jordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond reputeJordo! has a reputation beyond repute
Default

could be an intermittent vac leak anywhere before or just after the primary O2's. The surge would be from the ECU dumping in extra fuel to try and maintain stoichiometry for the unmetered (by the MAF sensor) air it picks up.

Check for vac leaks around intake and exhaust components before and just after headers.

Might also be a clutch slip issue -- not as familiar with those problems here, so just speculating.

Any CEL light / codes?
__________________
Enjoy it. Destroy it.
Jordo! is offline   Reply With Quote
Old 01-27-2013, 04:59 PM   #2 (permalink)
Base Member
 
Trilitheum's Avatar
 
Join Date: Feb 2011
Location: Ontario
Posts: 210
Drives: '11 370z 6M KAD Spt
Rep Power: 15
Trilitheum is a jewel in the roughTrilitheum is a jewel in the roughTrilitheum is a jewel in the roughTrilitheum is a jewel in the rough
Default

I think it could have something to do with engine, catalyst, O2 warm up, etc. Most mornings when it is cool on my way in to work I get the slight surge at almost the exact same place every morning.

I pull out of my driveway and onto a 70 km/h flat road with no stops or turns for ~15 min with little traffic, so my throttle input is pretty much constant. If your commute has lots of stop and go or throttle changes I don't think it would be noticeable, but it is for sure there.
__________________
2011 Nissan 370Z Touring/Sport, 6MT, KAD
Trilitheum is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sluggish acceleration molamann Nissan 370Z General Discussions 41 06-21-2015 04:27 PM
Loss acceleration.... Help... camapthaman Engine & Drivetrain 21 06-12-2014 05:26 PM
Does VDC hinder acceleration? Matt Engine & Drivetrain 23 10-26-2009 01:08 PM
acceleration times Bushguts Other Vehicles 6 07-24-2009 07:06 PM
Acceleration Videos DonWolfo Nissan 370Z Photos / Spyshots / Video / Media Gallery 4 03-04-2009 12:09 PM


All times are GMT -5. The time now is 03:14 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2