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Under Car fuel pump operation?

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I'm fixing a 1985 MK 1 GTI Convertible, checking the fuel system, I've removed the under car fuel pump and am trying to understand if it's working

 
Hi, I'm trying to check the operation of the under car fuel pump.  When current is applied across the terminals it clicks, but does not pump.  Would you expect it to pump, or is it waiting for some fuel pressure (threshold) to be reached first?

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no, if it is good applying power and ground, to the proper terminals will make that sucker run.  Also there is an in-tank pump used in 85"s
What do Divorces, Great Coffee, and Car Electrics all have in common?

They all start with GOOD Grounds.

Where are my DIY Links?
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