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Hello Gerry,
my Suzuki Swift (3cyl, late 80ties, 10GA?) circuit says that ECU pin A2 leads (yellow/black) to injector (0.5 - 1.5 Ohm).
+12V is provided by an injection relais which also powers fuel pump (can you listen 1-2s 'zzzzz' when ignition is on?).
Note that there is a resistor between the injection relais and the injector to limit the current. Maybe this resistor is broken down (1.9 - 2.1 Ohm).
Hope this helps...
»Horst
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Fiat Palio 1.2 8V Weekend, 2003
Citroen Ami8i Break, 1972
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