MembersPage/TeppoKalske (2007-06-01 14:47:25)

Teppo Kalske from Finland, born 1972

I'm currently using VEMS on my daily driver Audi RS2 with 16x14 maps.

Using 1.1.23, soon testing 1.1.24 firmware with auditrigger


[OLD dump and log from 1.1.9]


Yesterday I had plenty of trouble starting the engine when temp around -15°C.

Engine crank about nice, took bit of a while to get cam sync (1.0.53).

After getting sync engine tries to start (promises) but fails to start. Problem is that there seems to be a strange gap in ignition(?) when mode is changed from crank to running.

A: You have a Very High ignition advance from low RPM, (30+ degrees), also a very low cranking threshold rpm (300) and a low cranking advance

Set all three leftmost bins in the whole spark table to 15,9,25 and set a 15 degree cranking advance, 400 rpm threshold and try again //Emil

Result: No difference

Some inertia is needed to get over it and with a cold engine it is a real problem.

I tried different crank and afterstart ignition and fueling settings, no luck.

Another problem is that ecu seems to do too much Air Den enrichment. If I tune fuel-Map when IAT is around 10°C, it has to be changed to leaner about 5% when IAT is below 0°C, and even more when IAT is -10°C. (With warm engine of course)

Log, dump and msq can be found here:

http://www.audiclub.fi/kalske/vems/


I need help for picking right sensor-files, these are the measured points:

CLT (audi 5cyl 20vt standard sensor):

-20°C 11000 Ohm

0°C 6000 Ohm

100°C 200 Ohm

IAT (audi 1.8T 20v sensor):

-40°C 80000 Ohm

20°C 2400 Ohm

130°C 100 Ohm


Additional info to my 55pin v3.3 order

- for 3B