I just recently wired up 2 walbro 255 external fuel pumps on my 2003 cavalier off of the same factory grey power wire for the intank pump... yeah I know bad idea... well everything seemed fine for the first mile of testing until the car just shut off... I know I blew/fried something but not sure what it could be... I thought maybe if I just hard wired a single fuel pump to a toggle switch and turn it on the car would fire and I could drive it home... not the case... even with the car getting fuel it wont start... I checked all the fuses under the hood and inside the car on the driver side... all good... also swapped AC relay with the fuel pump... they click when the key is turned on but the fuel pump does not prime... any ideas on what happened? Fried ECM?
...I am the BEST at what I do...
"I guess your right[BlueBoost]. Me and my slow car are failers."