Author Topic: no RPM  (Read 7337 times)

Offline Bambi

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no RPM
« on: December 18, 2012, 03:17:00 pm »
HI

I'm not getting an rpm signal with genboard 3.6 on a URS4. Works fine with a 55 pin motronic unit though. I made a harnass connector between the car's 55 pin motronic and the genboard 3.6 using  the following pinout:

1   EC18-11   Stepper-D   Power output stage for ignition, cylinder #1
2   EC18-05   Stepper-C   Power output stage for ignition, cylinder #2
3   EC36-18   INJ-F   Fuel pump relay control
4   EC36-06   INJ-G   Audi Idle air control, needs Schottky flyback
8   EC36-13   Sec. Trigger   Hall effect sensor (signal wire from G40 pin #2)
10   EC36-5   GND5   Ground #1 (0V) - Inlet manifold
11   EC18-01      Knock Sensor 1 (AAN: cylinder: 1,3)
12   EC36-28   Sensor 5V   +5V for HALL, altitude sensor, coding plug connector
14   EC36-21   GND5   0V Reference Signal (AAN: sensor)
16   EC36-07   INJ-A   Fuel injector #5 control (switched 0V)
17   EC36-08   INJ-C   Fuel injector #2 control (switched 0V)
19   EC36-32   GND5   Ground #3 (0V) (Solder on the bottom side)
20   EC18-10   Stepper-B   Power output stage for ignition, cylinder #4
21   EC18-04   Stepper-A   Power output stage for ignition, cylinder #5
22   EC36-15   p259-5   CEL check engine light
23   EC36-11   Ignch4   Power output stage for ignition, cylinder #3
24   EC36-32   GND5   Ground #4 (0V)
27   EC36-25   VBATT    +12V Ignition ON (Terminal 15)
29   EC18-02      Knock Sensor 2 (AAN: cylinder: 4,5)
30   EC36-26   GND   0V Reference Signal (AAN: sensor)
31   EC36-31   1k * 10uF   Fuel consumption signal for trip computer (J128)
32   EC36-15   1k * 10uF   Boost pressure signal for trip computer (Not used on S2)
33   EC36-17   INJ-H   Wastegate frequency valve control (switched 0V) 
34   EC36-09   INJ-E   Fuel injector #3 control (switched 0V)
35   EC36-19   INJ-B   Fuel injector #4 control (switched 0V)
36   EC36-20   INJ-D   Fuel injector #1 control (switched 0V)
37   EC36-23   Flyback   +12V battery feed, via Fuse S28
40   EC36-04   P259-ch0   Tachometer signal (to Instruments & Autocheck)
44   EC36-02   MAT   Intake air temperature sensor, 429 Ohm pullup
45   EC36-14   CLT   Coolant temperature sensor
47   EC18-12   LM1815sectrig   Crankshaft position sensor 62 BTDC cyl1
48   EC18-17   GND   Reference point for engine speed and crankshaft position sensors
49   EC36-27   Prim. Trigger   Engine speed sensor 135 cranktooth
50   EC18-08   speed in   Wheel speed input, 4k7 4k7 and 5v1 Zener protection diode.
53   EC36-01   TPS   Throttle valve position (F60/G69 Pin #3)

Any idea where to test for a problem?

Offline Kamuto

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Re: no RPM
« Reply #1 on: December 18, 2012, 03:38:03 pm »
first remove spark plugs, disconnect coils and injectors, then crank, try to record trigger log, what firmware what configuration do you have? :) look when you are cranking do the indicator running on lights up? try to disable sec trigger and crank it then.
Vems installer in Lithuania
valdas.sunokas@gmail.com

Offline Bambi

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Re: no RPM
« Reply #2 on: December 18, 2012, 04:24:20 pm »
running 1.1.81

I recorded log and config files here: http://vems.hu/vemstune/bugreports/reports.php?cmd=view&key=MDAnpV


Offline Kamuto

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Re: no RPM
« Reply #3 on: December 20, 2012, 12:01:04 am »
did you made trigger log? and better upgrade firmware and vemstune
Vems installer in Lithuania
valdas.sunokas@gmail.com

Offline Bambi

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Re: no RPM
« Reply #4 on: December 20, 2012, 04:44:14 am »
Is recording the triggerlog the same procedure as normal logging?

Offline Benzmac16v

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Re: no RPM
« Reply #5 on: December 24, 2012, 05:14:20 am »
No, recording trigger logs is done with a tool in the tools menu.

Jim
1985 Mercedes-Benz 190E 2.3-16v - VEMSv3.3 1.1.92

MemberWiki: http://www.vems.hu/wiki/index.php?page=MembersPage%2FBenzmacx