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Registered
Join Date: Aug 2015
Location: Cologne / Germany
Posts: 707
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@ Funracer
The resistane of the FV should read 2 - 3 ohms.
The ECU iself does not provide 12v power to the FV. The FV gets its power from the OSx relay. The other (ground) connection on the FV is connected to the ECU where the ECU applies an interrupting/pwm ground signal on that FV connection. Its pulse width length results in the FV's dutycycle.
Btw. your ECU unit comes with the correct Bosch part no. for a '83 vehicle.
So when all ECU "pin lead to ground" checks result ok, then its also worth checking the inner part of the ECU for water marks or similair.
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911 SC 3.0, 1982, black, US model – with own digital CPU based lambda ECU build and digital MAP based ignition control
All you need to know about the 930/16 and 930/07 Lamba based 911 SC US models:
https://nineelevenheaven.wordpress.com/english/
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