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Secondary trigger trace on trigger analyzer?

Started by wazzu70, October 25, 2013, 05:37:20 AM

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wazzu70

I am curious if the secondary trigger trace would show up on the triggerlog if my sensor is wired in, but it is not enabled?

My cam sensor is a VR so I am not sure if I just don't get a trace at low RPMs because its not generating a strong enough signal, or if my sensor is not working. Testing with a volt meter the sensor has proper resistance and it seemed to work fine before the VEMS was installed.

I am just curious mostly if I will see a trace with the secondary trigger disabled in software, or if I need to enable it for the trace to be recognised? If I enable cam-sync, how can I set things up so the engine will run without a signal to sync with?

My unit is configured to work with a secondary VR sensor, just to be clear.

Thanks!
BMW E30 M42 project

VEMS

For the secondary trigger to show up in trigger log it needs to be enabled (power cycle ecu after enable/disable). If just to verify functionality dont worry about additional setup just take out injector and ignition fuse during trigger test.

Cranking the engine 5 seconds or more while taking the triggerlog should show both primary and secondary pulses. When verified remember to disable secondary trigger again until properly configurated.

Regards, Dave

wazzu70

BMW E30 M42 project