Thread: DEEP ECU wiring
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Old Sep 28, 2016 | 09:50 AM
  #29  
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jsa
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From: 'straya
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If the tool you are using needs 12V from the OBD port, then yes, 4 & 5 are ground, and 16 is +12V.

'93 era EEC won't support anything more than DCL.
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