car died while getting onto the interstate... help please?!?!

[98awdtalon]

i have had this car since april and have only got to put 2,000 miles on it. I know dsm's are problem after problem (this is my 3rd dsm). I went after some pizza the other night and when i was getting back onto the interstate i was behind a semi. I was in 2nd gear wrapping it out and getting ready to shift into third and then had fuel cut. Then all of a sudden my car died as if it had ran out of gas. I had to call my little brother to come with the trailer and get me and my car. i assumed it was the fuel pump that went bad since the car does have 193,000 miles. So i went and got a new fuel pump and put it in and its not kicking on. I then tested the old fuel pump on an old battery i had in the garage and it still worked. Im thinking i blew a fuse or relay since i have power to everything else in the car except the fuel pump. My question is what relay or fuse runs the fuel pump???? i pulled every fuse in the car and under the hood but all of them are good but i dont know how to check a relay and dont have a single clue which one runs the fuel pump. the car is a 1998 Talon TSi AWD 5 spd

 

[malibu80]

I believe it is the mpi relay. From my understanding it is a dual purpose relay for your ecu and fuel pump.

 

[lacroixdp]

Did you check for a boost leak? It sounds like you might have blown an intercooler pipe.

 

[luv2rallye]

FP and MFI are separate relays on 96-99. The ignition switch supplies power to FP relay while the ECU turns it on. Location: http://www.dsmtuners.com/forums/att...l-not-turn-off-mfi-fuel-pump-relays-96-99.jpg

 

[98awdtalon]

how would a boost leak cause my fuel pump to not kick on at all?

thanks guys i will check those relays out when i get off work

 

[lacroixdp]

I'm sorry I must have skipped over the part where you said the fuel pump's not kicking on.

 

[98awdtalon]

i printed that pic of the relays out then went to the car and took them out. took them to both Advance AND Autozone and they have no idea what they are for. they bring up fuel pump relay in their system and the pic comes up and it looks nothing like what i have taken out of the car. i have no clue what i have to do i just need this piece of crap running so i can get rid of it ASAP!!!!!!

 

[Sicotic]

check your ECU, Try like carquest or Napa for the relays, by the way i have 22 acres of land in camebridge.

 

[98awdtalon]

ok, i just got to work so i will check that out when i get home tonight. you have 22 acres in cambridge? well stop down at the bike shop in town ill make you a good deal on a 4wheeler or something and you can do some ridin there

 

[DSM1G90]

Mine did the same - died going into town. ECU had suddenly died. Did a ECU replacement and got back on the road.

 

[98awdtalon]

ok. im no mechanical genious by any means especially when it comes to electircal stuff. what exactly and where is the ECU ?

 

[DSM1G90]

With your car as a turbo, it's hiding under the hood right next to the fuse box. Looks like a square flat "tin can" with tonnage of wires heading into it.

IT's the "brain" of the entire vehicle's operation to basically makes the motor run very effectively to meet emissions required by the EPA for that certain model year of manufacture.

..it's like a CPU in a computer - without it, all the components under the hood will not function correctly.

 

[98awdtalon]

thank you i will look at that when i get off work. i was told yesterday that the ecu is inside the car and you get to it by pulling the passenger side panel off the center consol and its up behind the radio.

 

[DSM1G90]

that is if you got that '98. They gave you info if you had the earlier 2G model (95 to 97 models) which would then be where it was mentioned at - behind the console.

 

[sp00linbyu]

Sorry buddy I didn't realize they moved them on the 98's. Check under the hood like the guy stated but it should still look like the pics that I sent you.

 

[98awdtalon]

its all good man. when you comin back to work? hell you been on vacation for a month it seems like

 

[sp00linbyu]

HaHa. Well I'm back to this place we like to call work now. Vacation wasn't long enough.