Warren Hall once posted this:
Quote:
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3. The factory alarm/theft-deterrent system has no schematic diagram in the factory service manual ... the one appearance being the Part I of the '82 USA 911 SC current flow diagram! In the last part of the electrical section of the manual there is a connector pinout and basic Voltage and test lamp checks ... AND an insignificant (to the writer, apparently) note saying that even without power, a failed Alarm Control Unit can DISABLE POWER TO THE FUEL PUMP, 'UNDER CERTAIN CIRCUMSTANCES!' MAYBE IT SHOULD BE CALLED THE OWNER DETERRENT SYSTEM? There is a workaround provided to disable the alarm system by jumpering both terminal #61 connectors at the alarm unit 8-pin socket ... after the unit has been disconnected!!!
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The complete thread with a wiring diagram is here:
'82 SC Won't run
There's also something about the dome light fuse sharing the same circuit as the lambda unit. You might want to check all of your fuses up front.
Also, what about running through the basics again? Fuel pump relay, wiring grounds, etc.?
Brian