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BMW V8 RPM signal from MBE to DASH2
Posted: Wed May 07, 2008 4:10 pm
by hellas
Hi,
i have a problem displaying RPM on my DASH2. The DASH2 displays the RPM up to aprox 2700 after that the RPM scale goes down to 0 RPM and stays there until the engine revs under 2700.
Any ideas?
Reg
Pär
Posted: Thu May 08, 2008 7:42 am
by Support
Without knowing details of the signals it is difficult to say. It could be that the pulses going to the DASH2 are very short and that over 2700rpm they just get too short and it can't see them. Do you have any way to view the signals such as an oscilloscope?
Martin
Posted: Thu May 08, 2008 8:39 am
by faraday
How is the RPM signal input to Dash2?
Is there a DL1 involved?
Posted: Thu May 08, 2008 9:25 am
by hellas
Support wrote:Without knowing details of the signals it is difficult to say. It could be that the pulses going to the DASH2 are very short and that over 2700rpm they just get too short and it can't see them. Do you have any way to view the signals such as an oscilloscope?
Martin
I dont have any oscillioscope, is there any other way to check the signal?
faraday wrote:How is the RPM signal input to Dash2?
Is there a DL1 involved?
via cable from MBE ECU.