5cyl 2.5L double VVT engine volvo/ford
Primary VR
- Later it was changed to a new honeywheel 1gt101dc HALL sensor from WebShop .
- does the HALL sensor sense the VR wheel ? That could explain the symptoms. Or... what is the wheel like, exactly ?
- maybe it has runout, or some asymetry ? (slanted, or sg...?)
- a VR sensor in place of the 1gt101dc (anyone could suggest some engine/car model with a mechanically compatible VR sensor, or sg. close ?) could reveal when captured with oscilloscope (not just VEMS triggerlog).
CAM HALL/HALL
Fuel pressure sensor
Outside 12V 400kpa MAP
5*coil on plug, drive by +5V logic level.
Drive by wire throttle body
New Intake and IAT sensor, separated from Motronic.
Crank sensor has shielded cable, the shield connected to GND on 1 point.
VEMS and Motronic has a common Primary trigger signal. VEMS originally had 27k pullup resistor.(pullup resistor uninstalled)
Motronic primary trigger input voltage is 2.46V to GND
Before first start i made two triggerlog, One when motronic connected and one without. That seemed good. TDC delay was set up. Started easily. It was running fine, But trigger error flag was on everytime. After this i disconnected the motronic, started easily again but nothing changed... Triggerlogs seems like a sh..t. when the engine running(also with 1 or 2 ECU, it doesn't matter)
I can revving the engine up to 7krpm without missfire. Maybe there was some small missfire but it was revving up easily.
Some strange symptons:
When crank sensor connected to both ECU, and im playing the throttle (drive by wire), the VEMS shows CRANKING flag, FUel pump on, and sometimes open the injectors and sparking the coils randomly, Sometimes it showed 10-6500RPM on RPM gauge when i moving the Throttle. It seems shield problem.... but i checked many times and it must be good. When motronic ecu disconnected this problem aren't.
I measured the VR sensor resistance: 130ohm...it seems very very low. I tought this is the problem. I put out the sensor and seemed It has same house like 1GT101DC HALL sensor. I installed this HALL sensor and changed the VEMS(solder the jumpers and 2k7pullup resistor) and the shielded cable pinout for HALL sensor. The cable still shielded.
I recorded a triggerlog when cranking, and on idle. It seems also sh..t when the engine is running. Very strange because this is a HALL sensor with shield from sensor to ECU connector...
VEMS Power GNDs and sensor GND points connected like you always recommend. I connected the GND point on the cylinder head at firts time and after tried on battery - but didn't help.
The engine's GND cable are strong, cranking fast and powerfully.
The other sensor signals seems good. There aren't fluctation....Maybe when the engine running the 5V analogs are dropping 0.01V.
I tried to run the engine without ETC controller(without high frequency/high current), hold the valve manually but the triggers also bad.
I checked the HALL sensor signal with oscilloscope and it seems very very bad on idle. I didn't check the VR signal with scope.
And an other perception: I measured +0.02V between every sensor's GND pin and GND(cylinder head or battery - )
I can't reving the engine up from 5500rpm with HALL sensor. When the fuel tank empty... you can see it on the log file.
files:
5V supply change and acceleration enrichment failure when ETC PID works...)
VR IDLE: http://www.vems.hu/files/Norbitron/GM/VRIDLE.triggerlog
VR Cranking disconnected ETC: http://www.vems.hu/files/Norbitron/GM/VRCRANKING.triggerlog
VR CRANKING with connected ETC: http://www.vems.hu/files/Norbitron/GM/VRCRANKETC.triggerlog
HALL stop at 5k5rpm: http://www.vems.hu/files/Norbitron/GM/STOP5K5.vemslog
HALL sensor IDLE: http://www.vems.hu/files/Norbitron/GM/HALLIDLE.triggerlog
HALL sensor cranking: http://www.vems.hu/files/Norbitron/GM/HALLCRANK.triggerlog
Scope of HALL signal. 