fuel pressure

Re: fuel pressure (antmcbane)

Sat, 19 Nov 2016 22:49:41 GMT

The FPR on the 2nd gen seemed up to the task at regging the higher flow of the 255. Was about 42 psi (38 psi is standard according to bgb but I've not seen one stock that runs lower than 40) on the stock pump and stayed roughly the same on the 255. Primes a hell of a lot faster though - I used to sometimes have to crank it a bit before there was enough fuel pressure to get it going but now its instant.

Generally mine would have a small amount of residual pressure the next morning if id driven it the evening before.

If you're losing pressure check injector seals on the rail and the regulator (procedure in the bgb). In an old camry I had (3sfe I think) it buggered up and ended up using a different reg on it.

Re: fuel pressure (rock)

Sat, 19 Nov 2016 21:15:43 GMT

Thanks
I suspected a faulty check valve

Re: fuel pressure (5SGTE)

Sat, 19 Nov 2016 18:21:06 GMT

Mine slowly drops from 43is slowly over time, I'd say a number of hours.

fuel pressure (rock)

Sat, 19 Nov 2016 16:54:25 GMT

Hi
Is anyone running a walbro 255 fuel pump with a fuel pressure gauge?
If so, do you have fuel pressure once engine is switch off?