Main electrical connectors in engine bay?

[johnmh]

Stupidly during my engine out I did not mark which round multi-prong plug connected to the engine connects to which plug on the right side of the engine bay in the car.  The look identical but cannot be interchangeable.  Is there a trick to finding out which one belongs to a specific connector?  The potential for havoc seems great here.  Will they even connect to the wrong plug? 

 

 

[Loren]

It is always helpful if you tell us the exact year and model of the car.

[johnmh]

Sorry.  Uh, a 996.  Convertible. Manual box.  2001.  Are not all 996s not the same in terms of those two wiring connectors? 

[dporto]

Why don't you try fitting the plugs to receptacles - it will be quickly apparent if they fit or not. Second, the length of the plug/harness might also make it obvious - or at least "more likely" where they go...Lastly, my plugs and receptacles had/have matching white & blue markings on them (most likely from a previous engine out) are you positive there are no identifying marks on them? I didn't notice these until I was ready to plug them in - I also had taken photo's for this very possibility (I wasn't even sure I had done this as it was so long ago and everything seemed like a blur by the time I was reassembling the car)...good luck

[johnmh]

Actually, the locations of the indents on the outer edges of the plugs make them impossible to install incorrectly.  Sorted.