Low fuel pressure please help!
11-11-2006, 03:46 PM
#1
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Low fuel pressure please help! All modes in sig. Im running a walbro inline 255. I put a fuel pressure gauge in a couple month ago.
It would always stay at 64-64ps1 and 61 on spray. One day it just dropped to about 45-50psi on street and 50-58 on the highway.
When at wot it drops about 5-8ps1.
I replaced the inline pump, the relay and the filter and nothing. No kinks in lines. What could this be????
It would always stay at 64-64ps1 and 61 on spray. One day it just dropped to about 45-50psi on street and 50-58 on the highway.
When at wot it drops about 5-8ps1.
I replaced the inline pump, the relay and the filter and nothing. No kinks in lines. What could this be????
11-12-2006, 05:02 PM
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I cleaned up the ground and it checked out fine with my volt meter. Im going to check the connection on the bad of the alternator. Some times i can hear the pump running and then it will cut out for a couple seconds and come back on. What type of pressure should i expect to see with the inline walbro 255?
11-12-2006, 09:11 PM
#5
Ah, it's an inline. Wonder if the intank pump is working. Take the inline pump out of the line entirely, see how it does just on the intank. Obviously, I wouldn't do that on spray, just for testing. Then try to find out what current draw on the inline ought to be at a given voltage and pressure, see if it's drawing too much. I'd bet on the intank working ok and trying to push through the dead inline.
