2 ECU has been ordered in the following option:
2 x ECU VEMS V3
- ETC BridgeOutput_Interface: 1
- LCD connection: yes
- Knock input channels: 0
- ignition driver: 4
- Hi-side PFET outputs: 0
- Flyback: HighZ-only 30V flyback
- EGT input: 2
- 1-wire interface: no
- mounting-style: flanged case
- MAP connection: 400kPa (5/3mm pneumatic)
- primary_trigger: HALL
- secondary_trigger: HALL
- Service: ASAP
- Special requests: no
- withSDcard: no
ECU numbers: 14116 and 14115
And ordered an ETC bridge controller (default: no special request)
Solved
The NFET driving bridge output EC10/pin2 was damaged => unable to pull to GND (so output was +12V all the time).
- the NFET also had some (not very strong) coloring due to heat
- since all outputs are tested before delivery (the NFET was originally good, driving the load and the "blue" indicator LED in the tester)
- the only likely cause is accidental short to +12V during install (possibly without a fuse, or high current fuse)
- the FETdriver, traces, and other components seem to not have been damaged at all
Symptoms were (with both ECU):
- Followed the instructions from help menu step by step when it calibrated.
- TPS1-2,PPS1-2 inputs calibrated
- TPS% without ETC controller is on 5%
- I Tried on ETC DC=100% the TPS=0%
- thought I have to swap the ETC motor pins. I did it but when i raise the ETC DC From 0% to 100% The TB is closing not opening.
Measurements:
VBatt=12.19V
- ETC DC=0% (in Econoseal10 connector)Between Pin1 and GND = 0V, BTw Pin1 and Pin2= -12.14V,
- Pin2 to GND=12.15V
- ETC DC=100% Btw Pin1 to GND = 12.19V, Btw Pin1 to pin2=0.11V, ** Pin2 to GND = 12.08V
Replacing the NFET solved it, pin2 reacted as it should.
Note: preferrably use the backout plate in the econoseal connectors (normally yellow in the EC10) to prevent sliding out of receptacles.