Tacho Problem
#1
Tacho Problem
Chaps,installed my self assembled MS1 a while back and it has been brilliant....tuned using Tunerstudio I might add.
The only little niggle I have is that my tacho needle keeps... what I can only discribe as "Twitching" +/-250rpm in any rev range, this is at idle,boost and cruising.
I have done the tacho circuit mod on the MS board using the two 1k resistors and the 2N2222A transitor and the tacho works but keeps bloody twitching...
The only thing I can think of that might be causeing this is an interrupted signal from somewhere.
I have fitted a 0.1uf capacitor but not sure if I have the right one.....has anybody any idea what the specifications or part numbers are for this capacitor.
Many thanks
The only little niggle I have is that my tacho needle keeps... what I can only discribe as "Twitching" +/-250rpm in any rev range, this is at idle,boost and cruising.
I have done the tacho circuit mod on the MS board using the two 1k resistors and the 2N2222A transitor and the tacho works but keeps bloody twitching...
The only thing I can think of that might be causeing this is an interrupted signal from somewhere.
I have fitted a 0.1uf capacitor but not sure if I have the right one.....has anybody any idea what the specifications or part numbers are for this capacitor.
Many thanks
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Zaphod
MEGAsquirt
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10-26-2018 11:00 PM