Nissan 370Z Forum  

Remote Tuning

Originally Posted by shadow85 I bought the Fuel pump relay kit from CJM and have it installed already, is that the same thing you are talking about? Did you install

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


Like Tree48Likes

 
 
LinkBack Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 06-25-2018, 08:11 PM   #27 (permalink)
Track Member
 
turtle64b's Avatar
 
Join Date: Jun 2015
Location: Granbury, TX
Posts: 550
Drives: '11 SC Blue 7AT
Rep Power: 3366
turtle64b has a reputation beyond reputeturtle64b has a reputation beyond reputeturtle64b has a reputation beyond reputeturtle64b has a reputation beyond reputeturtle64b has a reputation beyond reputeturtle64b has a reputation beyond reputeturtle64b has a reputation beyond reputeturtle64b has a reputation beyond reputeturtle64b has a reputation beyond reputeturtle64b has a reputation beyond reputeturtle64b has a reputation beyond repute
Default

Quote:
Originally Posted by shadow85 View Post
I bought the Fuel pump relay kit from CJM and have it installed already, is that the same thing you are talking about?

Did you install the CJM fuel system yourself, and how long did it take you?

I have a feeling there might be a fuel leak somewhere? When I look at my Ecutek logs for my WOT attempt, it says injector duty bank 1 is max @ 48%.

Both AFR banks are almost identical aswell as both MAF sensor readings.

There its strange because the AFR avg stays around 14.7 before I hit the accel pedal at cruise speeds but as soon as I try WOT the AFR avg raises, goes lean until I take my foot of the pedal again it goes back to normal, around 14.7.
Perfect, really anything that gets bigger wires for the fuel pump is what you want!

I put in the system myself and it took maybe 4 hours between a buddy and me (not including the pump assembly modification). The biggest pain was getting the lines routed to the tank haha. Getting frustrated and taking breaks was at least an hour of that.

Smell around. You will definitely smell a fuel leak if you have one! Probably before you see it.

When you punch it, make sure that you go to the floor with the pedal. Sometimes partial throttle response can be iffy.

To me it sounds as though the engine is either getting more air than it thinks (tune should correct that) or its not getting as much fuel as it needs. If the pump is running, you have the wires it needs to run effectively, so you shouldn't have any issues since your injectors and pump are definitely big enough.

Maybe try watching fuel pressure as best you can while you rev the engine to see if you get pressure drop-off when you rev. You could also rig up a camera or something in the engine bay to watch fuel pressure as you drive.

I had a similar issue occur a few months ago after installing the 9lb pulley and a tranny and power steering cooler. The car ran perfect for a week and suddenly starting running lean across the board. Try talking to Seb about going full speed density. It more complicated from a tuning standpoint, but it cleared up my lean issue completely and now we are working on ironing out the rest of my tune.

I did almost every test in the book to verify all the systems on my car are in good working order.
shadow85 likes this.
turtle64b is offline   Reply With Quote
 

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
Upgrades - Admin Tuning 3'' Intakes, EPS Tuning BB TB's, AAM Comp Intake Manifold 1cintron Intake/Exhaust 20 10-20-2018 10:57 AM
School me on the tunee side of Ecutek remote tuning. Jayhovah Tuning 3 08-02-2017 07:18 PM
Remote tuning? Guyfromthere Tuning 6 02-11-2017 01:57 AM
Uprev Remote Tuning options (FI) squid267 Tuning 4 09-20-2016 07:38 AM
Black Friday Tuning Tuning Specials at R/T Tuning Erik@RTTuning Drivetrain/Engine 0 11-23-2012 01:46 PM


All times are GMT -5. The time now is 04:50 PM.


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