RomRaider

What rom are you running for these logs?

Your feedback knock correction seems somewhat happy.

Do you have a wideband O2? I highly recommend you to get one asap. I like Innovate mtx-l or Aem Uego, both are easily logable and good value for money.

You could skip logging many of the parameters you are logging as they don't tell you what you need to know now, see if you can find manifold pressure relative sea level and log that.

skip: A/F Correction #1 (%)
skip: A/F Learning #1 (%)
find a wideband instead: A/F Sensor #1 (AFR)
keep: Accelerator Pedal Angle (%)
skip: Battery Voltage (V)
keep: Engine Speed (rpm)
keep but find the 4-byte: Fine Learning Knock Correction (degrees)
keep: IAM (multiplier)
keep: Mass Airflow (g/s)
skip: Mass Airflow Sensor Voltage (V)
skip: Roughness Monitor Cylinder #1 (misfire count)
skip: Roughness Monitor Cylinder #2 (misfire count)
skip: Roughness Monitor Cylinder #3 (misfire count)
skip: Roughness Monitor Cylinder #4 (misfire count)
skip: Air Conditioning Compressor Signal (On/Off)
keep but find 4 byte: Engine Load (Calculated) (g/rev)
skip: CL/OL Fueling* (status)
keep: Feedback Knock Correction (4-byte)* (degrees)

add:
- manifold press rel sea level
- ignition advance total timing

This is imho all you need to log for now:
Engine Load (4-Byte)* (g/rev)
Engine Speed (rpm)
Feedback Knock Correction (4-byte)* (degrees)
Fine Learning Knock Correction (4-byte)* (degrees)
IAM (multiplier)
Ignition Total Timing (degrees)
Manifold Relative Sea Level Pressure (4-byte)* (bar relative sea level)
Mass Airflow (g/s)
Primary Wastegate Duty Cycle (%)
Throttle Opening Angle (%)

and a wideband, such as AEM UEGO Wideband [9600 baud] (AFR Gasoline)

Start with lower boost, get your fueling right.

I disagree with dropping AF Correction as that helps in ensuring your closed loop maf scaling is on point.

Hi !

I do it a lot of changes on the rom, and the car was better!

But I have a problems with the knocking !! I have a lot in close loop



Screenshot from log



How I can correct my knocking? It is crazy !! Some times work good and some times a lot of knocking when u driving slowly

It's somewhat hard to tell without knowing the ignition advance when these knock sensor reactions occur if they are related to real knock or just noise.

Consider going back to all stock ignition advance maps.

Consider going back to all stock open loop fuel maps.

Consider going back to all stock avcs maps.

Then see if the knock sensor reactions continue and if they do, are repeatable.

If they are clean from knock reactions I would start by building a new open loop fuel map (for the non failsafes), logging with a wideband O2 I would then scale the maf perfectly.

Are you running 98 RON?

Hello Patrick,

Thank you for your help

I do it more change, I scaled the injectors and the dead time

Now in IDLE the A/F Correction is 0 and A/F Learning

The knocking is reduced to -1,4º in CL when you driving normal exepcting when I push the throttle strong and goes to -2,4º

In OL is other problem, I drive to rich! My AFR Gauge show 10.0 I don't understand, I can reduce! I try with Base timing from the stock and Open Loop Fueling from Stock and I have the same problem, when I go in WOT I'm driving too rich.

How I can reduce the fuel ratio?

The MAF is stock

Thank you!

An other question, when the car is at idle without AC sound perfect without noise

If I start the AC sounds a ticking noise, but If I push the clutch this sound disappears! I can't belive with this car..

You need to start in one area and work through it till its good then the next area.

Get your CL stuff together and where its in good shape. Then work on getting your OL stuff sorted.

Then focus on timing and boost.

If the first 2 are out of whack the other 2 are going to be a nightmare to sort out.

Running larger injectors is going to throw so many tables out of what that you need to do a lot of scaling for fuel to be on par.

You are right!

I do it more changes in OL and now I can reduce the air fuel in wot go 10.8-11.2



But the Feedback Knock still in negative -4,9 and I don't know how I can adjust more to put in 0..

It's time to touch the Base timing

Knock comes from 1 of 2 things. fuel or timing.

You need to start logging Total Timing and I also don't see any wideband information in your logs? Are you logging wideband or just viewing when driving?

You really need to be using a wideband in open loop to properly tune fuel and timing.

I'm also not 100% sure what is going on with your log file as it looks like it was altered at some point. Its weird how ALL your column headers are in 1 column.

He's using European settings, you can open the csv log file in notebook change all , to . and then all ; to , and you will be able to open it properly. I agree on not fully understanding what he wants to know through his logs, especially regarding the wideband.

Yes I'm from Europe and maybe the log file change, because in my case I can see without problem

Today I was installing my Serial RS232 to AEM Gauge and it works, so tomorrow I will test.

What is the best ratio in OL when we go in wot? Just for a idea

And the other question, base timing if it's negative what do you change on the table?

Thank you,

There is no "defined" number of where you should be in open loop because this can vary on many variables. Generally speaking 11.5 is a pretty "Safe" AFR for when your in full boost.

Base timing is a combination of two tables that need to be added together so you need to remember that when working on timing.

Logging Total Timing will have these two added together, but I like to change the KCA table to something a bit more flat and then using the timing editor to see how things are.

Dear Fireband,

I attach here some log, today was testing the AFR and I'm going to much rich I think

I have the same problem with the knocking

If you are using the timing from ver13 it's no wonder it's knocking. Better start with a safer base map and learn step by step. If you don't have a way to verify your tune is safe it's pointless to ask whether it's rich or lean.

Your not logging Total Timing .. just learned timing.

So it's much better put the stock values from Ignition Timing Advance & AVCS and start again in CL step by step and adjusting slowly, right?