the fuel pressure should not flucuate that much, maybe a few lbs, but not 15

 

spec is 48 + or - 2 psi

 

I just rebuilt my neon motor and I have 31 psi at my gauge [auto meter]. Will that make my car jump at cut out bad at 4200 rpm it goes crazy??? please help

 

willie your running lean as hell... dont run it untill you figure it out...

 

So tomorrow adjust myfuel regto 50+ psi is that right? That will make it better? thank you

 

willie, if you have a adjustable fuel pressure regulator then yes bring it up to 49 psi at idel without the vac refrence line on it then put the vac line on it will drop a hair thats ok...

 

OK did that today got it at 49 psi and it still did the some thing. Latter on I looked at it and when i adjusted the fuel reg it waz poping inside it sounded like a spring poping!!While i waz adjusting it and now i can not make it holdany psi. Well maby 10 pounds OK LOLis this fuel reg bad !! HAY THANK YOU FOR YOUR TIME!!! WILLIE

 

ebay fuel reg?

 

I dont now total performece got it for me in e-ville. I think i might go back stock for now so i can drive it lol.

 

Hay put a stock fuel sending unit back in the tank and it still cuts out at 4200 rpm the injectors are not stock thay are mustang 30# pound!! Is this the problemI do not have the stock ones to see if that is itmaybe y'all will know. Maybe you have all ready done this and know not to do it. Should I put stock ones back in it!! THANK Y'ALL VERY MUSH FOR THE HELP!! WILLIE