#16: Re: How to get RPM signal in the GTI 138? Author: erick3.14, Location: BrazilPosted: Fri Jan 07, 2011 2:44 pm ---- UPDATE:
today I arrived from my vacation and could wire the REV Counter. According my REV COUNTER manual, it asked to hook in the coilpack signal. Just doing that worked fine.
So I got the signal from the coilpack connector: connector 1135 4V NR according the following diagram.
Thanks Lee for your help. In my case, I needed the coil signal. The diagram you sent was the engine speed sensor directly.
Here is a video of the REV counter working. Just wondering now why the REV counter sometimes slips... I believe that the engine may not be fixed to steady RPM, so from time to time it may go over... I believe that original ECU/BSI which makes calculation for REV COUNTER and dashboard may take that into consideration and just show the average or most common data... so I guess the original system has a better filter to avoid rpm to slip. Anyway, it is fine:
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