I have a walbro 255 fuel pump in my car....How can I tell if it's a LP or HP??
12-03-2004, 01:13 PM
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I have a walbro 255 fuel pump in my car....How can I tell if it's a LP or HP??
I want turn my fuel pressure up but I need to know if my pump is an HP or LP. I don't have the box it came in so I don't know what part # it was.
Anyways. If I where to dead head the return line wouldn't the pressure shot up past 60-70 psi if it was an HP pump and the LP pump wouldn't go as high since it has a bypass in it.?
Anyways. If I where to dead head the return line wouldn't the pressure shot up past 60-70 psi if it was an HP pump and the LP pump wouldn't go as high since it has a bypass in it.?
12-03-2004, 01:26 PM
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Re: I have a walbro 255 fuel pump in my car....How can I tell if it's a LP or HP?? (CivicEJ1)
check the side of the pump for the part number
gss341
gss342 - high pressure
james innes
gss341
gss342 - high pressure
james innes
12-03-2004, 01:50 PM
#4
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Re: I have a walbro 255 fuel pump in my car....How can I tell if it's a LP or HP?? (ihaterice)
The GSS341 and GSS342 are both the 255 lph high output pumps.
The GSS317 and GSS318 are the 255 lph standard pumps.
Sonny
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