So I'm I'm stumped I hope someone can help me out or at least tell me a few more things to check
This is a tuning swap I've had it up and running for a while and this issue has been off and on from the beginning.
On first start up everything is normal sometimes (most the time). After driving around for a whole my fuel pump starts whining loud. When I did the swap the pump was replaced after the swap it started and I figured I got a bad pump and returned it for another no go.
I also changed the fuel filter and a week ago changed it again.
Before that I took a guess at the fuel pressure regulator and that seemed to help till the second day.
I'm stumped when I give it half throttle when the pump is whining it seems to surge or feel like the power is off and on but if I stomp it most the power is there not all tho
This is an s52 obd1 with a chip stock injectors big maf in an 89 325i
Help please sick of losing power.
This is a tuning swap I've had it up and running for a while and this issue has been off and on from the beginning.
On first start up everything is normal sometimes (most the time). After driving around for a whole my fuel pump starts whining loud. When I did the swap the pump was replaced after the swap it started and I figured I got a bad pump and returned it for another no go.
I also changed the fuel filter and a week ago changed it again.
Before that I took a guess at the fuel pressure regulator and that seemed to help till the second day.
I'm stumped when I give it half throttle when the pump is whining it seems to surge or feel like the power is off and on but if I stomp it most the power is there not all tho
This is an s52 obd1 with a chip stock injectors big maf in an 89 325i
Help please sick of losing power.
Comment