Spyder Fuel pump stays on in the on position

[EclipseKING]

Hi! I’m new to the forum so be gentle
I have a 2g eclipse that’s a 4g64 block with 63 head. I install a new 190walbro fuel pump and it was working fine then all of a sudden the pump just wouldn’t shut off in the on position. I have changed the relays as one of them was not good. If anyone has any idea let me know!

 

[Sirius1995]

Could there be a short somewhere? Also could be bad ignition switch

 

[EclipseKING]

Could there be a short somewhere? Also could be bad ignition switch

So I was running on only 2 cylinders for a while I found a short for the ignition module I had replaced it cause I got a good deal on it. I also have tried spare ecus with no luck. I have a rewire kit on but the pump was working normal then one day it just stayed on.

 

[Sirius1995]

I'd try another ignition switch, they're not expensive, even I can sell one for $10 + shipping

 

[DogWhistle]

On the Spyder 4G64 you have two fuel pump relays. One of them is by the driver’s knee in the console. Check it and see if it shorted.

Here’s an article that will help you locate the relay and decide what you want to do:

Spyder - 4G64 Spyder GS Fuel Pump Relay Module Bypass

Disclaimer: This documents mods made by me. I make no claims about any mods you make on your car that follows my process.Hours were spent trying to trace the cause of our performance problems on our 1999 4G64 Spyder GS. The car would run great, switching from open loop to closed loop, until...

www.dsmtuners.com

 

[EclipseKING]

On the Spyder 4G64 you have two fuel pump relays. One of them is by the driver’s knee in the console. Check it and see if it shorted.

Here’s an article that will help you locate the relay and decide what you want to do:

Spyder - 4G64 Spyder GS Fuel Pump Relay Module Bypass

Disclaimer: This documents mods made by me. I make no claims about any mods you make on your car that follows my process.Hours were spent trying to trace the cause of our performance problems on our 1999 4G64 Spyder GS. The car would run great, switching from open loop to closed loop, until...

www.dsmtuners.com

I recently just replace it. I replaced it cause I know it was a common issue so when I did the fuel pump I also changed that. It was working fine then just started staying on.

 

[EclipseKING]

I'd try another ignition switch, they're not expensive, even I can sell one for $10 + shipping

Good idea I’m gonna see if there’s ways to test it maybe it shorted out

 

[DogWhistle]

I recently just replace it. I replaced it cause I know it was a common issue so when I did the fuel pump I also changed that. It was working fine then just started staying on.

That relay provides a ground for the fuel pump so check and see if your fuel pump is getting a ground when the ignition switch is off. If so, the new relay is also bad. If not, your fuel pump is getting grounding somewhere else. Maybe the pump’s ground wire got nicked during the pump installation and is grounding at or near the tank. A volt meter is going to be the best tool to chase your problem down.