What are your ECU Trim Settings

[Hassan]

Ok guys,

1999 885i

Stock 9891 map (just lovered Warmup table a little)
K&N filter
Stock exhoust

IFT: -27,3
Stepper Position:6
LTFT: Can't adjusted

No smoke,but still smelly rich and pops while deceleration.

[metalguru]

You are lucky Chazzy I havn't got the latest one to work yet.
The value you put into the stepper, IACV, whatever you would like to call it should stay the same, when shutting down TuneECU it should come up with the save settings window.
Are you looking at the stepper position on idle control and voltage? This is controlled by the ecu when CO sensor is awake. To knock the CO sensor out at idle check out method in my notes, it makes idle much easier to tune smooth.

[Hassan]

Yeah,I don't remember the voltage but the other number (stepper position ) was 45

I've checked out the schematics in the official parts locator and compared with my bike,there is no O2 sensor.

Really,there is not.

Maybe there is after model 2000.(885i Mark II)

[ChazzyB]

...when shutting down TuneECU it should come up with the save settings window.

I've not see this. I assume the bike's still powered up and connected when doing this?

[metalguru]

Yes it is mate

[ChazzyB]

Yes it is mate

I rather thought it would be. ;-)

[Danny955i]

Woa Danny!
first, overrun is NOT high load! Think about it, if you were at the settings you suggest it would be pulling your arms off not slowing down. Overrun is zero throttle position therefore you need work on the throttle closed line.

next, the popping is caused by weak mix not rich, so you need to decrease the af values, not raise them.  While you are in there you can chanve any values in the 14.5 - 14.7 range to 14.4 that will stop the o2 se.sor messing up your lovely new settings.

the reason for popping is a weak mix doesen't burn properly and allows unburnt fuel into the exhaust. not logical I know, but thats how it is.

See.. this is why I shouldn't post at 1am... like I am doing now. Hahaha.

I think that's what I'm going to have to do.... 14.4 and be done with it.

Will running the O2 sensor 'off' hurt fuel economy?

[Hassan]

IFT: -27,3
Stepper:9

Exhoust poppin' around 2500 rpm while deceleration...

???

 

[metalguru]

That is the bit I am investigating at the moment, as still evolving my settings. Sadly no rolling road, so garage set up and butt dyno tuning here, much to the distress of my neighbours!! Slowly changing the TOR maps so will update soon. The main one to alter is the warm-up map as this is now too rich with the TOR map. This does the MPG a world of good.
(Got a gas tester coming soon,thanks fleabay).

[Danny955i]

Just updated my original post on page 2 with some... PICTURES of the maps...

So you guys can see exactly what I see...

Here I had the idle set at 1225.... but it wanders between 1220 and 1350.

[metalguru]

Danny looking at the readout the idle target is set to 1290.
Is the throttle cable got enough slack as it is showing 3 which seems a bit high?
Idle step position is 27 (the one next to -4.7%)this needs to be as close to or even zero as showing ecu compensation for idle, take a look at my settings for A/F1&2 maps, they will sort it out.
Try a lower idle speed 1000 to 1150 as easier to tune smooth and knock out the CO as my settings, may have to trim stepper to about -8 to -16.
Have a look at battery voltage/charging as low, this will cause many a headache!


 Will have some more new settings soon as been playing again, just have to roadporn it a bit more and refine a few bits.

UPDATED 19 APRIL 2011. Details in RED on page 1.

[Danny955i]

Current Setup:

1000-1400 RPM, 0-27% load = 14.45 A/F on A/F 1 map. (mine were green, not purple)

Warm Up: -10 to 14, .05; 24-130, 0.00.

Idle Speed: Same as MetalGuru (1500 @ -10, stepping down to 1050 @ 54-130)

Lowest value on A/F 2 map is now 12.5 from 1300-10,000 rpm.

Going to flash this into the ECU tomorrow and re-fiddle my IFT/IACV/LTFT settings.

[metalguru]

UPDATE ON PAGE 1 IN GREEN.

[Danny955i]

No update on tune or pics... but...

I re-flashed, 12 min reset... reset TPS... still getting a LOT of popping on decel.

But... I have a new problem...

Post here: http://tigertriple.com/forum/index.php/msg,69971#69971

[metalguru]

If you want a laugh UPDATE on page 1. :D