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Registered User
Join Date: Apr 2005
Location: sth london
Posts: 5
Relay question?

I have a 316i 1994 automatic,the three relays next to the main fuse box can anyone confirm,the position of the relays.
The 3 relays,i assumed were..1) fuel pump, 2) the control module
3) the o2 sensor,is that right?
I replaced the 2nd one as fuel pump relay,the car is working fine now.Before there was no spark.
Are no1 and no 2 the same relays?
If not then my problem was not the fuel pump relay,but the control module relay,i am confused.
Any feed back would be grate ful.
thk you
Old 04-30-2005, 02:35 PM
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Registered User
Join Date: Jun 2004
Location: North East Ohio
Posts: 32
I usually identify the relays by the wires leading into them. This is how it is on my 95 325i engine.

02 sensor heater: smaller gauge wires, not as many

fuel pump: has big fat red wire and a few others

control module/dme: has more wires than the 02 or fuel pump

Old 04-30-2005, 07:21 PM
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