All the sensors have no relation to the engine earth. TPS, RPM and map all dont make any physical relation to earth as they are all powered sensors. If that makes sense!
But it all has one earth. Loom and arduino all share a perfect earth to chassis, about 12inches from the arduino box.
Basically as an independent system it works fine. Use the cars power and earth and it goes mental
But it all has one earth. Loom and arduino all share a perfect earth to chassis, about 12inches from the arduino box.
Basically as an independent system it works fine. Use the cars power and earth and it goes mental
Wishes for more power...