Fuel Injection Relay

[burky]

Hullo, I am trying to find the location of the Fuel Injection Relay?. Thanks ,Mark.

 

[tochi]

You might be referring to the relay that controls the fuel pump. It is usually found next to the ECU under the right side passenger seat. https://e9coupe.com/forum/threads/fuel-pump-relay.18736/#post-132944

Or, you might be referring to the main relay and cold start relay often found (left hand drive vehicles) near the brake booster/servo. https://e9coupe.com/forum/threads/72csi-fuel-pump-issues.15106/

Assuming your ECU is under the right rear seat (and your coupe is otherwise wired the same as mine), there should be a relay next to it which operates the fuel pump. Check that. The ECU relay, also called the main relay, is under the hood (under the MAP on the brake booster extension and is next to the Cold Start relay.) The fuel pump and main relays each have 5 wires, but one could adapt the more usual 4 wire relays to work if replacements are hard to find. In my experience rapid clicking from the starter solenoid is a sign of a weak/bad battery; I've never heard other relays click rapidly with a battery issue, but who knows? HTH. https://e9coupe.com/forum/threads/car-not-starting-rapid-clicking-etc.38704/#post-332295

Relays are "typically" situated near/above brake booster on left hand drive vehicle. **This photo evidently depicts single relay found on carburetor versions, but it "may" give you an idea of what you "might" be seeking or where it/they "might" be found.

 

[tferrer]

There are 2 relays that are part of the D-jet system on the same bracket as the MPS. The fuel PUMP relay is next to the ECU.

 

[burky]

Thanks