Mercedes-Benz 200GE W463 -91 with mixed M111 engine
Hardware:
Gear box 716.657 SG-S400/6.1
Base engine M111.970
- Static compression ratio 10.4:1
- Bore and stroke of 90.9 mm ? 88.4 mm
- Wasted spark ignition
- DIY Ported head
Oil cooling to pistons from M111.975
Dbilas street regrind cams
- In / Out
- 37B-E / 34B
- 264 deg / 258 deg
- 10.0 mm / 9.9 mm
Valve timing: 12/72-32/52-20/58-58/20
Mechanically driven throttle body 57mm
Eaton M62 SC
Siemens Deka 613cc injectors 0280158123-L
Blow off valve Bosch 0280142110
Boost control pwm driven electronic throttle body bypass the sc #1110980009
- PWM f=40-50hz, usable Duty Cycle 10-90%
MAP sensor GM 3 bar 12223861
IAT sensor FAE 33166
Ethanol sensor GM #13577379
LSU4.9 Wideband O2 sensor
CAC water temperature FAE 33786
Coolant temperature FAE 33035
Outside temperature A0075421318
Speed sensor Cherry GS100502 Hall effect - measuring from bolt ends of rear prop shaft.
Water to air intercooler (China and yes it is leaking)
CAC radiator: Fiat 600 #46558704
CAC pump: Bosch 0392022010
Mainly original wiring harness fitted with extension to ec36 And ec18
ECU VEMS V3 Order #15889
- 1-wire interface: yes
- additional Low-side NFET outputs: 0
- EGT input: 1
- ETC BridgeOutput_Interface: 0
- Flyback: HighZ-only 30V flyback
- Hi-side PFET outputs: 0
- ignition driver: 4
- Knock input channels: 1
- LCD connection: no
- MAP connection: offboard(electronic)
- primary_trigger: EC36/27 VR
- secondary_trigger: HALL
- Special requests: no
- withSDcard: removable
- 2020 12 16 To do
- Install Ibutton reader for immo.
- idle air valve
For some reason my EGO never enables during driving. Uploaded a log for review.
http://www.vems.hu/files/AnttiKo/
Hello AnttiKo,
I have reviewed your vemslog: v3.3_u019109-2020.12.10-07.13.31.vemslog, the ego does not enable because the wideband circuit indicates the wideband sensor is not ready for use (meaning either heater or pump control is too far off target to be accurate). Status can be monitored via the isO2Ready Flag in VT, see: http://vems.hu/vt/help/v3/flags/iso2ready.html
To determine the root cause of the control problem, please proceed as follows:
- in knock sampling settings, change realtime data option to: adc/individual power
- take the wideband sensor out of the exhaust in free air
- start a vemslog
- than start the wideband calibration from tools -> wideband calibration
- leave the log running for a few minutes until the wideband has fully heated up and pump control is active.
- stop the log and publish it in your FileArea (linking here) for review.
- you can change back knock sampling settings, realtime data option to previous setting.
I will review and get back to you with my findings
Best regards, Dave
Just uploaded the new log v3.3_u019109-2020.12.18-13.13.59.zip
I also calibrated the sensor again. It was out of spec.
Test ran the car after the calibration, but the WBO ready flag did not light up.
BR
Antti
Hello Antti,
I have reviewed your vemslog v3.3_u019109-2020.12.18-13.13.59.vemslog and spotted a problem, the heater control is railed at zero after pump activation; meaning somehow the wideband sensor is running too hot, while the ecu is trying to lower the temperature.
This could be either wiring or hardware failure. Please proceed with a quick ecu wideband circuit verification test using the steps from GenBoard/Manual/WideBandHardwareTest, most important part is the Verify Heater section.
Its important to verify that:
- during ecu powered, engine not running; heater led is off
- after wideband controller started via tools->wideband calibration; led starts pulsing.
- disable wideband via tools->wideband calibration->stop; led turns off.
Please come back to me with your findings so i can help with narrowing down/locating the source of the problem
Best regards, DaveDave
I found the fault. The cable is grounded all the time. Even when the ec18 cable is removed from the ecu. The error is in my harness