Bmw E30 Fuel Pump Relay Test
Now assuming you have power to the input of the fuel pump relay from that test you just did it is time to test the fuel pump relay. Turn on ignition and check for fuel.
Bosch Motronic Basic Motronic 1 1 1 2 1 3 Fuel Injection Technical
If it still will not run until it sits for the 20 30 minutes we will go on to other possible faults.
Bmw e30 fuel pump relay test. 30 to ground and 85 to 86 both register 12 volts on cranking. Relevador con falla intermitente cortando el voltage al fusible 11 que alimenta a la bomba de gasolina. With the relay removed bridge pins 30 red wire and 87 greenviolet to directly power the fuel pump.
Some common fuel injection problems can be traced back to a faulty or nonoperational fuel pump. Remove the relay look at the contact map on the side. Find great deals on ebay for bmw fuel pump relay e30.
If the pump is noisy and loud or the fuel pressure in the engine compartment is lower than what is needed for proper fuel injection operation itas probably time to replace the fuel pump. 30 is the wire from that main relay 87 is the wire that feeds the fuel pump. If the pump runs and the engine runs with the jumper in place but does not run with the relay in place the relay is faulty.
Check of the relay of the fuel pump of the bmw 5 e39 procedure. If you are having issues with the performance of your engine you may have a fuel pump going bad. If you are having issues with the performance of your engine you may have a fuel pump going bad.
If fuel is now present the fault lies in the controlling system. The fuel pump needs to be able to send a certain volume of fuel at a certain pressure constantly. So none of my other troubleshooting was changinging anything.
The fuel pump relay is a normal relay be sure to test it. Este tipo de relevador es parecido a los que usa ford pero no son iguales en las terminales. I did the tests.
Fuel pump relay 2 is located at the right side of the trunk behind the cladding on the battery. I jumped 30 and 87 and the pump indeed runs though it sounds a tad rough. You will see that 30 connects to 87 when the relay is switched.
Without a working main relay the computer and fuel pump along with everything the computer controls will not engage. Turn on ignition and check for fuel. Well this is weird as hell.
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