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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 12-05-2003, 06:10 AM   #1 (permalink)
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I have a 89 325i that isn't getting fuel. Everything cranks/fires just fine. I've had some work done to it w/ no results(replaced filter, fuel line, etc); the next step is to replace the fuel pump. Does anyone know how difficult this is? Is there any other insight that anyone has for this situation?
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Old 12-05-2003, 10:27 AM   #2 (permalink)
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Out side the fuse box are three relays.

they can be moved to different locations.

The only way to know is to check the wire colors.

The five prong is the main relay
RD
RD/WT
GN
BR
BL/RD

Fuel pump relay
RD
RD/WT
GN/VI
BR/GN

o2 sensor heater relay
GN/VI
GN/YL
GY/BR
GN/BU

On the fuel pump relay, short from pin #30 to #87.

This should cause the pump to run if fuse #11 is good.

Later,
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Old 12-05-2003, 10:56 AM   #3 (permalink)
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KC, Thanks for the info, I'll give it a try.
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Old 12-06-2003, 03:56 AM   #4 (permalink)
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On my 84' replacing fuse # 12 fixed a similar problem. According to schematic for my car it could have been fuse # 9 or #12.
K.C. you are amazing. I just added to file another of your posts.Good work.
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Old 12-10-2003, 11:13 AM   #5 (permalink)
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KC or anyone- Does anyone happen to have a list of what the fuses are? Also, I have found 2 different styles of fuel pump; does the 89' 325i need just the pump or the pump,screen, etc?
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