Audi RS2

[AVP]

i did on cold engine, quite a lot.

do you think taking the cold accel values higher would cure things?

[gunni]

yes

[AVP]

ok, i have increased all accel enrichments as well as cold values.I will give it a go the next days...

[AVP]

it seems that accel enrichments are better now.

do you know if 1.1.27 versions have some kind of internal module that says when the engine is warm, or air temperature is warmer, the boost levels wont reach their highest value, whereas when the engine is colder + colder enviroment, it reaches them without any change on the settings?

i get that on a regular basis now. When i took the car for mapping, on cold ealry morning, the car was reaching and spiking sometimes above 300kpa, then once i made the adjustments for the spikes, and after lots of runs(although iat was still within the 13-23C) the car wouldnt reach more than 295kpa

[gunni]

You need to adjust the PID settings and the limit so that the boost control is able to control that range.

[AVP]

my pid settings are 240/5/58.

usuallly when i increace the D thats when i get more boost to hold on, but it may also increase too much the boost on the higher gears, which i want to avoid

[gunni]

Then you obviously need more tuning of the pid settings or raising of the refDC.

[AVP]

i use rpm vs map, not DC

refDC is 4/5

[gunni]

Send me your msq and I´ll have a look

[AVP]

sure i will email you!

[AVP]

does changing to 1.1.70 from 1.1.27 version and from nissan trigger to audi trigger v3 change the timing on the engine? i have a bit of trouble getting hold of a strobe light to recheck the timing and im wondering if it is safe to do it without the use of it.

[AVP]

i have another query...

when i look at the MAT/TPS tables on the base maps (eg. 1.1.70) the idea is that the hotter the air, the leaner the mixture.

Why is it that on my car on 1.1.27 still, when the MAT is getting warmer, it seems that the EGO correction is going to the + areas, although i have build the VE tables in a way that is mostly 0 to (-),(rich side in other words). I would expect that then the MAT is getting higher(hotter) it should get richer and therefore substract more fuel as the EGO correction works.

Why is it doing the opposite in my car?
Could this be an indication of a malfunctioning water temp or IAT temp sensor? How can i be sure when im using VEMS about malfunctioning sensors?

[GintsK]

Mentioned map includes universal gas law. It is not hardcoded in firmware. Hotter air - less O2 molecules - less fuel.
In 1.1.27 it was hardcoded. Only way to change something was fake air density value.

Gints

[AVP]

I see,
thanks for that,

does that mean that at least with the 1.1.70 version that has the mat/tps table this can be somewhat compensated for?

[GintsK]

Sorry, what you mean?