Fuel pressure gauge flutter

[tc86gn]

I have a KB hood mounted FP gauge and today on the way back from Beaumont,Tx. It would flutter in a 5psi range when I accelerate. not so much when I was cruisin at a steady speed(maybe 1 psi) Is this a sign that my pump is fixing to go out? I have a hotwired BGC pump. Maybe this is a good excuse to get a Walbro. Filter is clean as a whistle. Anyone else run across this problem before?

 

[tc86gn]

TTT

 

[Crazi]

I had the same thing a while back and when I replaced my pump, the ATR billet fuel pump thing to replace the hose had one the silicone rings or whatever torn so it was obstructing flow. It would fluctuate about 3-5 psi on mine. If you have the fp hose on yours, don't worry about it though. May be the pump wiring. Is it hotwired? I blew a fuse a few weeks ago cause the wire had rubbed through. maybe yours is grounding out somewhere. just my .02.

 

[tc86gn]

Thanks for the reply. Yes it is hotwired. wiring is good to go. The reason I suspect this, is that I recently had the tranny built and when I picked it up, I was almost on empty. This means that the transmission shop road tested it with not enough fuel in it. I was thinking that it could have caused some damage to the pump running it in a road test condition at WOT to see how hard and at what rpm's it would shift out at. Guess I will just swap it for a walbro and see if I am right.