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View Full Version : Commanded fuel gets "stuck"


Lextech
September 26th, 2007, 11:15 AM
I just got my Innovate W/B installed a few days ago and started doing some logging. The commanded fuel seems to get "stuck" in the 11s. It seems like it is fine until I start to get closer to 105KPA then it stops in the 11s and stays there. Then the BEN map wants to add fuel. When I make the VE adjustment according to the BEN and drive again, it does the same thing again and calls for more fuel. What might I be doing wrong?
5.7ute
September 26th, 2007, 11:49 AM
Can you post the log & tune?
Also check you IDC, you may be running out of fuel or injector.
Doc
September 26th, 2007, 02:24 PM
What OS are you using? OL/CL?
Lextech
September 26th, 2007, 03:17 PM
I am running COS3 Open Loop Speed Density. Here is the tune and log.
5.7ute
September 26th, 2007, 04:10 PM
Do you have the wideband connected to the correct ad input? You are showing a flat voltage so something there isnt right.
dc_justin
September 26th, 2007, 04:13 PM
Hey Jeff,

One thing's apparent with that log, your WB isn't being properly fed into EFILive, so your BEN factors are irrelevant right now.

As far as why you're hanging at 11.5:1 commanded... Can't say for certain, but it almost looks like you're going into piston protection or engine protection mode... Maybe richen both of them up a bit, one slightly moreso than the other so that you can determine if it is one or the other.

Justin
Lextech
September 26th, 2007, 11:27 PM
Thanks guys,
I thought the W/B looked strange, but I am so new to it that I wasn't sure. It may be a couple of days before I report back---Very busy @ work.
Lextech
September 28th, 2007, 03:14 PM
It appears it was B3643. I had it set to 1.000 and almost all of the other tunes I have looked at are 0 to .020 I still don't have the Innovate W/B working properly. I have just about had it with this W/B.:bash:
Lextech
October 3rd, 2007, 10:14 AM
Got the W/B operating properly and have been driving the truck for several days now. It was not Engine Protection or Piston Protection Mode. It would stick to the richest value in B3647. If B3647 @100KPA and 4000+ RPM was 11.50, it would get stuck at that. If B3647 was 11.80 it would stick to that. (B3643) is now set to .020 B3643 appears to be a decay rate from rich to normal fueling AFR. It appears that a value of 1 means it will take forever to transition back and a value of 0 means it won't transition back---I don't know this to be a fact---But that is what it seems like.