I am writing this for a German friend, who has got some problems with his EMU + turbo setup.
Some informations about the setup:
1.9 NB (99)
Garrett GT28R (imho)
ZT-2 wideband O2
old 360cc injectors (new 460cc inectors)
He was changing the injectors + a DIY dual feed fual rail and after that -
The car is not running right anymore.
- Car is bogging after ~5.500 rpm (due to running pig rich)
- No hot start
We already tried the injector lag times, b/a injector settings, even tried switching back to his old injectors. No change (only the hot start got better)
The EMU autotune is acting completly strange and getting him into running even richer. With the autotune deactivated and manual changes to the I/J-map the car runs better - but if you put autotune back to work its getting bad again.
One thing is - he has no O2 clamp up to now - I think this might be part of his problems but even with the "old" setup and injectors its not working correct.
- tried different throttle body
- disconnected bov
- checked wiring
Any suggestions on what could cause this problem? Begi FMU?
For the ones with some knowledge in German language (we've seen there are a few of them):
Greets and thanks for your help!