 power to fuel pump, intermitent |
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| jimkelly |
 Jul 5 2009, 09:34 AM
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Delaware USA  Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region  |
yesterday i wasn't sure if my fuel pump was getting power - or if my injestors were getting fuel - so i removed my injectors and my spark plugs - put my injectors into yogurt cups and turn the engine but no fuel.
i pulled my stock front mounted fuel pump and it did not make any noises when i turned the key. so i hooked up a volt meter to the fuel pump power wire - i was getting power - so i assumed my pump was bad. this morning i go out to the car and turn the key and the pump runs - so i turn over the engine some to see how fuel is going thru my injectors into the cups - they all spurt fuel - so i put the injectors back in and the plgs back in - and then - bam - the fuel pump is not getting power again?? i swapped out several reays - no success? http://www.youtube.com/watch?v=PrLcva9o8LA http://www.youtube.com/watch?v=8pipbKl_ZQU http://www.youtube.com/watch?v=bOAhJ9OZpm4 http://www.youtube.com/watch?v=9gMp0eoXvYc Attached thumbnail(s) 
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| 70Sixter |
Jul 6 2009, 03:31 PM
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#2
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Member Group: Members Posts: 422 Joined: 3-August 04 From: Surf City, NC Member No.: 2,444 Region Association: South East States |
I do not know anything about high pressure FI pumps. But my carb'd 70 911 had an intermittent fuel pump problem I went crazy diagnosing.
Finally through money at the problem and tore old pump apart after replacement with new one. The rubber gasket between the electric side and the pumping side had deteriorated and gas would eventually flood out the electrical side killing the power. |
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Posts in this topic
jimkelly power to fuel pump Jul 5 2009, 09:34 AM
anderssj Jim,
I had a similar problem some time back--turn... Jul 5 2009, 09:45 AM jimkelly i scuffed up the fuse ends a little biyt - no chan... Jul 5 2009, 10:04 AM ejm
How did you ground the meter? Checking across th... Jul 5 2009, 10:50 AM jimkelly here is how i got my crappy meter hooked up - just... Jul 5 2009, 11:07 AM 70Sixter Delete please. Jul 6 2009, 03:30 PM yellow914 what is it with the friggin fuel pumps lately... Jul 7 2009, 06:42 PM buhs914 well my fuel pump had issues like that before and ... Jul 7 2009, 10:11 PM swl jim if you are getting reliable 12v at the pump th... Jul 7 2009, 10:22 PM buhs914 Hey if your pump is screwed then i have a 12v fuel... Jul 8 2009, 12:58 AM underthetire The above pump won't work. Low pressure pump f... Jul 8 2009, 10:20 AM
buhs914 ah my bad i forgot i had a carb lol Jul 8 2009, 07:26 PM |
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