Fuel pressure regulator bad?

[2g spyder eclipse]

Well recently I have been having a tough time starting my 2g gst cold. It will turn over for 4 seconds then it will finally start. It has stock injectors and a walbro 255 fuel pump PO put in. Is my fpr bad? I have a bad and bouncy idle when cold and it is lacking bottom end tq and takes a while to get upto propper boost and power. Any help thanks!

 

[Zufelt]

From what I've read, most need a AFPR instead of the stock if your running a 255. So yeah, that could be your problem. Maybe someone else will chime in.

 

[2g spyder eclipse]

Ok, I just really want to make sure that my stock one didn't go bad. I'd hate to shell out 150$ on a aem fpr just to see a dial..

 

[Bloody Panda]

Ok, I just really want to make sure that my stock one didn't go bad. I'd hate to shell out 150$ on a aem fpr just to see a dial..

Just to see a dial? You shouldn't be running a 255 with a stock fpr so buying a afpr should probably be in your best interest whether your fpr is bad or not.