1G Help with my fuel issue

[Timb]

Hi everyone I picked up a really nice 91 Eclipse with the 1.8l and 168k. Paint is faded pretty bad but other than that it's a good looking car!

So the last time it was registered was 06. The previous owner drained the fuel before it was parked so I threw some fresh in the tank and didn't get any fuel pump hum. I changed the pump and still no hum. I can hear the click of the relay when I turn the key and it will fire off starting fluid.

Could it possibly be a bad ECU? I don't have a multimeter or anything to really get in there to test it. If someone could steer me in the right direction I would be very grateful

 

[CanadianTalonTC]

Fuel pump doesn't start running unless it's cranking so you won't hear a prime on key turn.

That being said, did you also flush the lines? clean the injectors? Fuel filter replaced? Have you popped the line off at the rail to ensure it's getting fuel to the rail itself?

18 years is a long time and draining the fuel from the tank won't drain the fuel from those parts.

Also buy a multi meter, they are so cheap. Literally 20 bucks at Harbor Freight for a decent one. Then you can see if you get voltage to the wires while cranking and that would be a great first step.

Also fill out your profile so we all know what car you have/mods etc. Makes things easier.

 

[Timb]

Fuel pump doesn't start running unless it's cranking so you won't hear a prime on key turn.

That being said, did you also flush the lines? clean the injectors? Fuel filter replaced? Have you popped the line off at the rail to ensure it's getting fuel to the rail itself?

18 years is a long time and draining the fuel from the tank won't drain the fuel from those parts.

Also buy a multi meter, they are so cheap. Literally 20 bucks at Harbor Freight for a decent one. Then you can see if you get voltage to the wires while cranking and that would be a great first step.

Also fill out your profile so we all know what car you have/mods etc. Makes things easier.

Thank you for the response!!! That would explain why I'm not hearing the fuel pump when the key is on.

When he drained the gas out the car was ran out of fuel but now you mentioned it I'm almost positive that there was still old fuel in the lines so I will flush those out before I go to crazy on much else. I did replace the fuel filter and I pulled the line off the rail and I'm not getting any fuel when I crank it over.

I did run out and buy a multi meter this morning so I will be testing the wires for the fuel pump today I also filled out the vehicle on my profile to hopefully make it easier.

 

[Lonestardsm]

Condensation in tank can also least to rusty pump and cease operation. Remove the line to filter and fuel rail and look into how to activate the fuel pump manually. I’m not sure on a one g but I believe there’s a blue wire with black stripe that’s caped off on firewall harness close to passenger side. Key on 12 volts to that and fuel pump should come on someone correct me if I’m wrong. I haven’t messed with my one g in a while since I got into 2gs

 

[CanadianTalonTC]

Thank you for the response!!! That would explain why I'm not hearing the fuel pump when the key is on.

When he drained the gas out the car was ran out of fuel but now you mentioned it I'm almost positive that there was still old fuel in the lines so I will flush those out before I go to crazy on much else. I did replace the fuel filter and I pulled the line off the rail and I'm not getting any fuel when I crank it over.

I did run out and buy a multi meter this morning so I will be testing the wires for the fuel pump today I also filled out the vehicle on my profile to hopefully make it easier.

It can never truly drain everything cause the pump ~10' away needs to provide adequate pressure through the entire system + return line etc plus have some fuel or it won't run at all, so when it dies you still have fuel. Even better, the 2g AWD's like mine will leave you stranded with a few litres left in the drivers side of the saddle tank .

Get a friend to crank it and probe the wires, if you have power you know where to go to next. Good luck!

 

[1990TSIAWDTALON]

This is way too simple.
Blow compressed air thru the lines to clear them....if anything is left considering evaporation.

 

[Timb]

It can never truly drain everything cause the pump ~10' away needs to provide adequate pressure through the entire system + return line etc plus have some fuel or it won't run at all, so when it dies you still have fuel. Even better, the 2g AWD's like mine will leave you stranded with a few litres left in the drivers side of the saddle tank .

Get a friend to crank it and probe the wires, if you have power you know where to go to next.

Ok sorry everyone I got super busy and didn't get a chance to look at it today. I tested the pump and it was not getting any power when It was being cranked over. I have a electric in-line fuel pump I use to test bad fuel pump and I hooked it up to the fuel rail and I didn't get it to fire at al. I sprayed some starting fluid in it and still didn't even try to fire.

Last time I messed with it the temp was in the 90s but it was only 55°f this morning when I was playing with it. Last time I was able to run it on spray for 10 seconds and that was after I replaced the fuel pump and made sure the tank wasn't to bad.

Also mine was made in Sept of 91 so that would make it a 92. Sorry about the misinformation

 

[CanadianTalonTC]

Ok sorry everyone i got super busy and didnt get a chance to look at it today. So I tested the pump and it was not getting any power when It was being cranked over. I have a electric in line fuel pump I use to test bad fuel pump and I hooked it up to the fuel rail and I didn't get it to fire at all and I sprayed some starting fluid in it and still didnt even try to fire. Last time I messed with it the temp was in the 90s but it was only 55°f this morning when I was playing with it. Last time I was able to run it on spray for 10 seconds and that was after I replaced the fuel pump and made sure the tank wasnt to bad. Also mine was made in Sept of 91 so that would make it a 92. Sorry about the misinformation

I wouldn't even start messing with getting it to fire until I have the pump installed, fuel running to the line properly etc personally.

Are you running your battery one through your FPR? What pressure is it getting? Plugs are wet? Have spark? Did you double check your firing order?

 

[Timb]

I wouldn't even start messing with getting it to fire until I have the pump installed, fuel running to the line properly etc personally.

Are you running your battery one through your FPR? What pressure is it getting? Plugs are wet? Have spark? Did you double check your firing

Sorry I wasn't very clear on that last message.

When I first got the car the very first thing I did was put a brand new fuel pump into it and looked into the tank to make sure it wasn't bad looking and throw some good gas into it. I didn't hear the pump run so I figured it wasn't getting power because it would run on spray so then I made the account and posted on here.

I learned the pump doesn't work unless it's cranking so I had my wife spin it over as I checked the wires with the multi meter and I have no power. I had the fuel line unhooked and nothing ever came out of it. I did blow it out before hand as well.

I hooked up my in-line electric pump to a boat can to the fuel rail to see if it would run off that and it would not fire anymore even with spray. The plugs are wet and I never checked the firing order because the first time I messed with it I ran it for 10 seconds on spray and it was running great. I honestly thought I just needed to do the pump and I would be driving it.

I also read that if I touch the relay for the fuel pump when I turn the key on it should make a vibration and it does so I believe it's working. I read somewhere else that they could be hard starting/fuel issues if the ECU was on its way out so that's why I was wondering if it was that?

Sorry if I'm being confusing. I have a few projects going on so I'm kinda scatter brained