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.
On my E30, the filter is on the fuel line a way forward from the tank. The pump is in the tank. There is an inspection port accessible by removing the rear seat in my car. Depending on how full the tank is, I would not do that outside of a shop though.
The rear seat come out with two 10mm bolts on the front of the seat. If you want to get a fuel pressure reading try on the beginning of the rail and T in there is a line that comes from b/t the intake runners I have been fighting with fuel isues from day one with mine also check the fuse/relay that is why i picked mine up for a 100 bucks also you have another fuel pump on the rail under the car behind/below the pass seat and while you are checking that go ahead and change the fuel filter oits like 30 bucks from oreillie auto parts If you ahve any other questions just let me know ive got 2 318I's that i am constantly working on. btw go ahead and change your fuel pressure regulator while your at it its cheap insurance
real mech fuel inject is what is found on a 2002tii.U have jetronic fuel inject.there is a out side fuel pump and a in tank fuel pump. Also check the fuel pump relay were the fuses r kept. Do u have spark? It could also be your cold start inject. or your thrmo time swicth that read the antifrezz temp to tell the cold start inject to put in extra fuel. I know the m10 m30 motors very well.I am going 2 drop a 635csi motor in my 320i e21.Was asking if any 1 had ever done 4 some tips no one has said jak so i am on my own but when i am done i will give as much help with photo 2 any one who needs it the car will b sick like a pit bull on crack! NYC out
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