Bypassing a relay using a single wire.
Mr2 fuel pump relay bypass.
The pump will switch back to full speed over a certain boost pressure.
It presurizes the system if i bridge fp and b in the diagnostic port.
A high pitched sound occurs when the engine starts.
The ecu switches the the fpr off at start up to run the pump full speed then switches over to the resistor after a certain time making the pump slow down.
The car acts.
Not the perfect video but it will help you to find some answers on your own lets you know if you have a bad or go.
If you bypass your fuel pump resistor this might fix the problem and keep the safety features in place.
Acceleration is uneven this is also a sign of a bad fuel filter so have the fuel filter checked first in this case.
As for the fuel pump resistor and relay on the turbo s use the resistor is to reduce current to the pump to slow it down when fuel demand is low.
Next i tested the fuel pump relay.
When the relay fails the fuel pump won t operate.
The fuel pump turns on but fuel pressure is low.
My mr2 turbo wont start.
I checked fuses and fusable links a ok.
Test temporarily bypass fuel pump relay.
Short version of the story.
Here are some common signs of a faulty fuel pump.
This video will show you how to bypass any relay to make the system work.
How to bypass motorcycle fuel pump relay yzf.
Replacing the fuel pump relay may not fix the problem because the source of the trouble may be the fuel pump.
According to the bgb i should have continunity between pins 1 and 3.
This helps retain or increase the life of the pump.
