Most problems solved by now:

- 2 broken ignition wires

- 1 broken VEMS GND wire (hope it didn't kill anything inside)

- 1 broken WBO2 connection wire

- loss of fuel pressure

(It was not me who assembled/wired this car together... grrr)

2006.08.10

Engine and VEMS is living again in another chassis.

Spent a half day of "mapping it right", but it can't be any better, finally we ended up with the config we started. With a ~30% improvement of req fuel because lambda values showed it necessary.

Main problem was unstable idle; loadsite pointer draws big ellipses in the VE table. Frequent stalling after backing off the throttle. Throttle reaction was horrible. Response is very late (0.5-1sec), and first it's become very lean (>1.5 lambda) . After that when falled back to idle, it was very rich (0.7x lambda) and stuttering for 10-20secs and then goes back to normal idle. It was reproducible. Played around with acc enrichment which values (or dimensions at least) are totally messed up in current megatune. Behavior changed slightly but problems remained.

Background info: current owner claims the car was running fine(?) the first day they started, and after that they poured injector cleaner into it and the next day it was hardly drivable at all. What can be caused by injector cleaner? -They removed all 6 injectors and flowed back to clean after that. (Some of them was somewhat blocked), -no change to problems.

Other suspect is misfire or problematic injectors. It's hard to detect a high-cam-duration 6cyl engine when a cylinder is not running fine. Any diagnostic methods? (Read the plugs is not the way -needs to remove the turbo)