Hi,
finally the engine fired up first time yesterday evening and did run . . . . . . sort of running . . . .
Lot of questions popping , and I hope I can get some answers here.
1. I did some tests with CP adjustment. So I did switch on the fuel pumps (not via testing mode, just bridged the relay).I changed the K-Jetronic CP base map, to see if the system does react to the change. This worked, however the number in the map where different (by about 90 kPa less) to CP target and CP itself, see followingpicture. Question: Is there any offset somewhere in the system, which explains this difference? Or are the numbers in the map in relative pressure and the numbers in gauge in absolute pressure? Also question on the functionality of the map. Is the Base map just the starting target and the system is then reacting to Lambda and adjusting CP? Is this happening even if Auto Tune is switched off? ny functional description which shows the interaction between CP base target map, Lambda control, VE table and all
Next picture is from a log file with engine running. As it is visible CP is a flat line sitting at about 100 kPa. THe CP target seems to react to AF ratio (going lean, reducing CP target). However, as the CP is very low, the system is not capable to bleed more (CP duty at 95%). Also I gues that the back pressure in the line will be not less then about 100 kPa, so it wil be not possible to reduce CP even more. Also here the question, is the shown CP target and CP in absolute or relative pressure?
Any suggestions will be highly welcome.
Best Regards,
Dirk