Why is VEMS firing and engine starting when camshaft sensor is not connected?

[black]

Why is VEMS firing and engine starting when camshaft sensor is not connected?

VEMS 3.6 AAN PNP Hall-Hall M55 with trigger_tooth=00

so it should have have camHALL inverter...

so with input open (remove connector), there should be no spark at all

but it is firing and running...   but why??

[mattias]

Firmware version? Vemslog? Config? Error report link?

[black]

Firmware version? Vemslog? Config? Error report link?

ECU1 3.7 AAN PNP

Firmware 1.2.30 - not firing

ECU 2 3.6 AAN PNP

Firmware 1.2.32 - firing

I have no logs for these yet but how is that possible in general?

[VEMS]

Hello Black,

Without having more details about the actual configuration used (and the exact trigger type) its hard to say much about this, i would recommend creating a sharing report which has at least both configs and preferably a triggerlog of engine cranking 8-10 seconds without IGN and INJ fuse is also included for both.

We also have an option in secondary trigger which allows for this behavior (as a form of limp home) called "Missing tooth primary allow sync without camsync receive" more details on: http://vems.hu/vt/help/v3/v3_secondary_trigger_settings.html

Please provide a bit more details about both setups, so i can investigate,

Best regards, Dave

[black]

Hello Black,

Without having more details about the actual configuration used (and the exact trigger type) its hard to say much about this, i would recommend creating a sharing report which has at least both configs and preferably a triggerlog of engine cranking 8-10 seconds without IGN and INJ fuse is also included for both.

We also have an option in secondary trigger which allows for this behavior (as a form of limp home) called "Missing tooth primary allow sync without camsync receive" more details on: http://vems.hu/vt/help/v3/v3_secondary_trigger_settings.html

Please provide a bit more details about both setups, so i can investigate,

Best regards, Dave

Hello Dave, I will try to get some logs...

both VEMS have VW Lupo 60-2 primary trigger and oem cam trigger...

regards