2G MFI/Fuel Pump Relay

[bjbaxter]

On my 98 GST, are both the MFI relay and Fuel Pump Relay right next to each other and look exactly alike (a black box/relay, that has four flat prongs).

The number on both of them was E8T101 7823

That's exactly how it was written on the parts. Not sure if it was because the number was too long for the short length or what, but that's how it was. Any help, suggestions, or anything would be greatly appreciated!!! I need to get my car back on the road, its becoming a garage queen

Wait, the 7823 was below the E8T101, not all goofy looking like it is right now.

 

[z24frank]

So what is the first thing I check? Actually Is there a list? I know nothing about the MPI relay and circuit for that matter. I honestly don't even know where to start.

 

[97ebaygst]

So what is the first thing I check? Actually Is there a list? I know nothing about the MPI relay and circuit for that matter. I honestly don't even know where to start.

Did you ever find the answer to ## question about where to start looking cause I'm having a similar problem.

 

[miamiscadudu]

is there a such thing as an injector relay? my car is getting spark and fuel to the rail but not to the injectors and they flowed fine about a month ago when it stopped running. the part number for the part I need is E8T08474 and everytime I search for it nothing comes up at all. If anyone could help me I would really appreciate it.

theres an injector relay trust me i have this same problem right now the injectors are not opening but theres spark theres fuel the fuel filter is working and everything but there is no signal for the injectors to open so i found out there is a relay for injectors part # mb543648 (relay) search for it
if u change it and it still doesnt work change the crank sensor and camshaft sensor because they are both connected to the same wiring

 

[steve]

theres an injector relay trust me i found out there is a relay for injectors part # mb543648 (relay) search for it

Once again, so it's clear. There isn't an injector relay.

The injectors get their power via the MPI/MFI relay. Same relay that provides power for the ECU, O2 heater, solenoids, ISC/IAC and the injectors via the injector resistor (on turbo cars). The ECU pulls the other side of the injector coil low to cause current to flow and fire the injector.

The MB543648 relay is used in many Mitsubishi cars for different things. On a 2G the auto door lock uses one.

On a 1G the MPI relay is MD119202 marked E8T08071.
On a 95 2G the MFI relay is MR161519 marked E8T08474.
On the 96-99 2G's the MFI relays are MR224160 both marked E8T101.

 

[janamarie]

Here is how to test the fuel pump relay.

That is the thing that i really need. The testing of this fuel pump relay really makes me sick! Always having a hard time doing and even trying that thing.

 

[tekn0]

Hello,

Quick question, is this MFI / Fuel pump relay the one I have to remove in order to crank the engine over, like for example a compression test or to prime the engine with new oil after an oil change??

I have a 99 GS-T stock...

Thanks!!!

 

[steve]

I wouldn't remove the relay. Removing the fuse is fine.

 

[mechanix565]

so when i crank my car after i would stop cranking i would hear the fuel pump finishing its cycle, now when i dont hear it any more so im guessing its the relay because the car wont start, i have spark i havnt checked fuel pressure but i dont hear the pump so im guessing i do, ive checked all fuses and they are good where is the relay on a 1g? and does that sound like the problem?

 

[steve]

The MPI relay on a 1G is bolted to the passenger side center console support by the ECU.

Have you checked your ECU?

 

[DoggTalon]

Is the fuel pump relay same place on a 95 eagle talon tsi

 

[luv2rallye]

Yes but it's combined with the MFI relay in an 8 pin unit.