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Hi All, thanks for the inputs and in confirming the tune was not the culprit.
Turned out to be a bad regulator.

I've had issues (now resolved) where the return line at idle wasn't man enough to return enough fuel and the pressure would increase. But here i'm seeing lower pressure...
So either the injectors...

Yes to the referenced FPR but no obvious signs of fuel in the vac line.
Leaking injectors may make more sense, just would have thought one or two might fail showing up on one bank rather than both...

Not sure if it's the hotter than usual temps weather wise, i've got a new problem or changed something without realising it.
But...
When the car is warming up or sitting at cooler running temps ECT...

I'm running SD and chasing a cold start lean condition that is only appears related to IVT.
I've got the IAT variance fuelling dialled in, but conditions still exist where IAT's are still high, but...

Argh, sorry. Been out in the cold coming back into the tune after nearly a year. Missed flipping the long term trims off.
Although aren't these reset after a cal flash? Anyway thanks for the sanity...

With closed loop disabled via the tune parameters (i.e. via engine coolant temp for closed loop maxed out), is there a part of the management that still reads the 02 inputs for idle fuel adjustment?...

I've always been logging lid open, so the drop protection may be kicking in (Lenovo/IBM Thinkpad).

Hadn't noticed the lights go out.
The hard drive protection thing sounds the most plausible under the circumstances (but never would have thought of that, so thanks), will check some BB logging for...

Hi Joe,

Car's running an E40.

14020

Check between frames 2664 and 2665 nearly 5 seconds is missing according to the time indicator.

Cheers

I don't know if the V2 gets scared or something, but I have logging issues (usually when doing WOT passes) that the data logging doesn't keep up with the data resulting in large time gaps in the log....

It's not the check engine light, but the 'service vehicle soon' light. Which i'm led to believe is shown if a none critical code is thrown.
Those are the only DTC codes that are being set.

:)
DTC's are P0102 and P0103.
The code is needed to force the ECM into SD mode. But is there a way to stop it also causing the warning?

Tune here:
13800

I always get the SVS light on the dash i'm assuming because of the MAF codes logged when in SD.
Is there a way of getting rid of this. HP Tuners seems to have an extra option against the DTC codes...

I suspect a dynamics compensation solution, but have an issue on hot days when the engines been sitting long enough to cool down (around 50*C ECT) but the IAT's have hit around 60*C from sitting.
...

Thanks Joe,

I'm on build 180.

So I can correct the cal_link.txt file as follows?
B1213.ROW=SAE.IAT

Is this just bad setup on the scanner or is that what the ECU actually referencing???

This is B1213 on the E40. The link parameter in brackets against this tables says SAE.ECT when the label says...

Anyone tried this with an E38? :)

Few tweaks would be require to the method of course...

Yes sorry. Frustrating not being able to try things straight out.

Sure all thats happening is the idle is too lean and the ECM is somehow compensating swinging it rich. Likely richening up the...

Hi Simon,

I'm sure your right. My only concern was that the idle was swinging either way so wasn't sure which way I needed to move the VVE.

The IAT is locate about 4 inches from the inlet valve...

Ok i've managed to reduce this considerably. Changed my PE setting to come in based on MAP of 80kpa, with low throttle across the board.

The knock must have been occuring on the boundary, around...

Thanks Taz, i'm still in the NA portion of the VVE map if that helps ;)

1. Mods are stock LS2, TVS2300 supercharger with CAI. Siemens 60lb injectors (scaled 40%)
2. Current tune here 12151. OL SD with 2 bar MAP sensor. All airflow referencing tables have been scaled...

Hi Taz,

Haven't dialled in the IAT modifier yet, will get this done to help clear the waters.

However in the log example the IAT's were not changing. Also regards the commanded fuelling OL,...

Despite the E40 being the neglected middle child, it's still holding more love from me than the E38.

Been battling SD tuning the VVE table on a friends car with a number of inconsistencies.

One...