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Old 06-23-2005, 12:43 AM   #1
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volvorod85's Avatar
Join Date: Feb 2003
Location: Sunny Socal
Default MS install, stupid hell sensor question....

Ya not a typo, the hall sensor on the back of the head has 3 pins, 1 2 and 3....or - 0 + ....im pretty sure i have it right and i just happened to get the one bad hall sensor in the whole junk yard, but the

- is ground, the braided sheild in the harness
0 is the green wire, signal to the MS pin 25
+ is red, 12V with the 10 ohm resistor

Mind you the colors are from the origional volvo harness, just want to get someone else to tell me its hooked up right before I go and hunt down another hall sensor.

BTW, I followed schematic #2 and used the 10 OHM resistor for the dizzy, the 390 OHM on pin 24, and the green wire or RPM signal from the hall sensor to pin 25 and jumped X11 tp XG1 as shown in the pic on the MSnS site...thanks for the help

Also, I took the dizzy out and put ground on the - and 12v on the + and had the meter on the center pin (0) and got no switching at all, its stuck on zero volts....
2019 Buick TourX <-- Daily driver
2009 Honda Fit <-- Wifeys ride
1982 Austin Mini <-- Wifeys toy
1959 Austin Healey Sprite <--something completely different (my project)
1974 Fiat X1/9 <--Mom's little toy (next project)
1982 Olds Custom Cruiser LQ4 <--Dad's beast

"Driving the old 2 valve 740 is a bit like driving an IKEA wall unit, so leisurely is its acceleration, so angular its lines."

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