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Message: <blockquote data-quote="kenchoo" data-source="post: 1063865721" data-attributes="member: 127642">For simple car sensor which calculated the fuel consumption are the MAF/MAP sensor(5v which use the 5v supply from ECU) & the O2 sensor( which the signal(mv for narrowband sensor or ma for wideband sensor) generated from the heat of exhaust manifold ). And I had try to reset the MAP sensor before, but,O2 sensor do the final calculation of how much fuel to put.VSD help on stable current were help the gain especially, (if you have DC clamp meter, try to plug it car battery positive wire, the Voltage actually drop when you suddenly turn on the head light or any other electronic equipment in the car.) It is to stable sudden pull of current to the battery supply. And car have many electronic component eg. radiator fan , air con, automatic transmission. All of the come to sudden pull of current, which affect the overall performance car engine, and the ignition coil need stable current. Simple example 14.5v=14500v in the spark fire, sudden drop of 1~2 volt were actually bring down the spark fire by 1000~2000v. That is the function capacitor to solve these sudden pull of current. Capacitor can charge & discharge very fast and supply power to the sudden pull of current. Think about it why hi-fi system need capacitor? These is the answer.---------- Post added at 11:24 AM ---------- 6 hour anti-bump limit - Previous post was at 11:21 AM ----------Make sure your cap can stand the heat in engine chamber. And make sure you fuse it. Insulated the capacitor with heat resistant material example superlon. The heat were shortage the life of capacitor.</blockquote>

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