Fuel trims - constant values
Mar 2, 2007, 07:38 AM
#1
Newbie
Thread Starter
Join Date: Oct 2001
Location: UK
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Fuel trims - constant values
Hi guys
Been sorting out my tune after added a few mods to the car. Anyway i was going to work on rescaling my maf. And have noticed something in all the logging tools i used to log my fuel trims... they're showing constant values across the rev range not matter what. i used logworks, evoscan and mitsulogger - all with the same results.
I've attached logs for you to see.
What would be causing this?
Mods are:
Apexi AVCR
open air cone type induction kit with the air intake snorkle in place
AMS Upper and Lower intercooler pipe kit with Tial bov
full 3" exhaust system.
Thanks for any help
Prit
Been sorting out my tune after added a few mods to the car. Anyway i was going to work on rescaling my maf. And have noticed something in all the logging tools i used to log my fuel trims... they're showing constant values across the rev range not matter what. i used logworks, evoscan and mitsulogger - all with the same results.
I've attached logs for you to see.
What would be causing this?
Mods are:
Apexi AVCR
open air cone type induction kit with the air intake snorkle in place
AMS Upper and Lower intercooler pipe kit with Tial bov
full 3" exhaust system.
Thanks for any help
Prit
Mar 2, 2007, 07:57 AM
#2
FuelTrim_Low and FuelTrim_Med should stay around 100 constant every log. FuelTrim_High Will be a constant value too, close to 100, but for me tends to be different every session, i.e., constant 98's, next day constant 104's, ...
You allright, but 67 is the lowest for FT_H I've seen.
Keep in mind there isn't really a true norm quite yet for many EvoScan logged parameters, you, me, and everyone else are the guiney pigs for next year
Damn Boe, was that 3rd gear? Looks like 390whp to me
Thats mitsulog is the longest log in the world
You allright, but 67 is the lowest for FT_H I've seen.
Keep in mind there isn't really a true norm quite yet for many EvoScan logged parameters, you, me, and everyone else are the guiney pigs for next year
Damn Boe, was that 3rd gear? Looks like 390whp to me
Thats mitsulog is the longest log in the world
Last edited by C6C6CH3vo; Mar 2, 2007 at 08:12 AM.
Mar 2, 2007, 09:24 AM
#3
Evolved Member
Hi
So have you tried to alter the intake, by running without the airbox on at idle and see if the fuel trims change? You will have to wait for the car to warm up so it will run closed loop.
MB
So have you tried to alter the intake, by running without the airbox on at idle and see if the fuel trims change? You will have to wait for the car to warm up so it will run closed loop.
MB