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3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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Old 01-03-2004, 04:13 PM   #1 (permalink)
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djeros is an unknown quantity at this point
Hello all !

Does anyone have a relay layout for a 82 320i that they can send me so I can figure out which one of the relays is the fuel relay.

Thank you all for the help!
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Old 01-03-2004, 04:56 PM   #2 (permalink)
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KC Ron Carter is an unknown quantity at this point
Fuel relay on e21 is the largest black relay out side the cover.

To bypass the relay short between pins 30 and 87.
The car should operate as normal or the issue is not the relay.



Here is a diagram.



It is a relay with a solid state board internal.

Pin 31 is the ground and the wire is Brown
Pin 1 is the RPM sensor and the wire is Black
Pin 87 is Fuel Pumps


The others are power in
Pin 15 is hot in run or start
Pin 50 is hot in start only
Pin 30 is the main input and is hot all the time.


Later,
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