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'''Noisy TPS''' http://www.vemssupport.com/forum/index.php/topic,2954.0.html Topic for discussion. In 2016 I experienced noisy 5v supply on Genboard V3.8 , usually when Vems bluetooth adapter is powered from EC36/28. I have not been alone....... http://www.vemssupport.com/forum/index.php/topic,2500.0.html http://www.vemssupport.com/forum/index.php/topic,2435.0.html The bluetooth adapter appears to generate noise on MAP and TPS. In our application TPS DOT rate settings caused acceleration enrichments to be active ALL the time, while little added, it held off EGO and VemsTune and VemsDisplay gauges would flutter significantly...... No good. Adjusting TPS DOT rate settings caused hesitation. Removing the bluetooth adapter, Resolved the issue. External power supply of the Vems bluetooth adapter resolved the issue............ Vems bluetooth adapter creates noise on 5v supply when powered from EC36/28. Today while looking at the schematics for another modification, I noticed that C69 (220n) capacitor on 5v feeding EC36/29 is not present on the board. Pin 29 is powered from Pin 28 via R142 and ground through C69. Forgetting for a moment my basic knowledge of electronics, would installing this capacitor help reduce the noise generated by the Vems bluetooth adapter on EC36/28?............ ---- Return to MembersPage/Sprocket
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