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Registered User
Join Date: Sep 2013
Posts: 36
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Walbro fuel pump
I replaced the factory fuel pump in my 1979 924 with a Walbro fuel pump. I think it runs 13 amps instead of the 7 or 8 on the old one. Will this make me blow 25 amp fuel pump fuses over and over?
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09-30-2013, 11:24 AM
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Registered User
Join Date: May 2012
Posts: 383
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Is that the maximum draw, or the average draw? Motors draw a lot more amps when starting up than when running steady, and I would guess that doubling the average draw of a motor in a circuit (and quite possibly doubling the draw at startup) could easily blow fuses.
Are you running the 190, or the 255, or? Low or high pressure?
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'78 924 "NA" '87 944 "S" '93 968 "SC" Last edited by tamathumper; 09-30-2013 at 12:21 PM.. |
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09-30-2013, 12:13 PM
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Registered User
Join Date: Sep 2013
Posts: 36
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High I believe here is the pump I bought.
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09-30-2013, 03:34 PM
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Registered User
Join Date: Sep 2013
Posts: 36
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It started blowing them soon after putting on jumper cables backwards during a jump start. The connection to the fusebox looks good but the relay connection look a little junky but it runs throught the fuse before the relay I think. I wonder if i melted a wire somewhere and its jumping across.
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09-30-2013, 03:37 PM
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Porsche 944S Club Sport
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Dan:
You may want to verify a proper Ground on the fuel pump. Reverse current may short relay and blow fuses. Use a DMM meter to verify all your Gnds especially at the fuel pump. Later.
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Guru944  2006 955 Cayenne S Titanium Series - Marine Blue, 1987 Porsche 944S Club Sport. 1987 Buick Turbo-T Lightweight "Great White", +500HP, TA49 Turbo. http://www.blackbirdmotorsports.com, 944/951/968, 911 and 955/957 Performance Solutions. Thank you Lord, for your Loving Kindness, Tender Mercy, and Grace. Only You are Faithful. |
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10-12-2013, 09:46 PM
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"Le Mans II"
"Big Blue" 955STi
NYSE Carrera
