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Message: <blockquote data-quote="Acoustic" data-source="post: 630742" data-attributes="member: 728">Hormally just tap off anywhere convenient to you. However certain points are more volatile than others and may not be giving a stable reading.for 20v AFM - tap of throttle 1 & 4 using 3 Y-jointsfor 20v MAP - tap of the Vacuum Sensor using a T-joint.Actually for 20v MAP the Vacuum Sensor is a electronic device and hence anyone can buy a 5V DC volt meter off the electronics store and read from there. If there's none make one.When it's zero volt means atmospheric, when it's 5V means 30 In.Hg.I once bought a 10V DC volt meter and changed the internal resistor so that it reads 1V DC when it's pointing at 10V and plugged it onto the O2 sensor and it works :)It swings from 0.3x V to 0.8x V fluctuating and all. But I already bought a 10 LEDs AFR meter, so gave the analog 1V meter to the maker of AFR meter for further experimental purposes.Analog 10V DC volt meter off Jalan Pasar - RM13resistor replacement = RM0.10old skool AFR meter at your service :) [last sentence copyrighted by EFN :)]</blockquote>

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