 1972 1.7 - Fuel pump not starting when key is turned, Problem with fuel pump |
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| itsmagic |
 Aug 8 2014, 10:46 AM
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#1
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Newbie  Group: Members Posts: 10 Joined: 3-June 05 From: Hyde Park, NY Member No.: 4,193  |
My 1972 1.7 914 recently decided to not start. I quickly noticed that the fuel pump is not running briefly like it should after the ignition key is turned. I verified that the relays on the relay board (Master, Fuel Pump, Blower) are all good by trying them on the headlight motors. I then verified that the two fuses on the relay board are good. Next, I popped the cap on the fuel pump relay and pressed it... the fuel pump runs when I do this. (The car will then start and run for a few seconds if I start it). Sooooo, I am at a loss... The fuel pump is fine, relay board is fine, relays are fine... what could be causing the fuel pump to not activate? Thank you for any advice. Wayne
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| silverbullet75 |
Aug 8 2014, 11:01 AM
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#2
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I reject your reality and substitute my own! Group: Members Posts: 18 Joined: 3-December 11 From: Las Vegas, NV Member No.: 13,848 Region Association: Southwest Region |
It's been a while since I've seen this, but depending on your Fuel Injection system, if the flapper is not moving past a certain point, it will not trigger the fuel pump.
I may be off on this though... it's been a couple decades, and I may be thinking about 1.8L. |
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Posts in this topic
itsmagic 1972 1.7 - Fuel pump not starting when key is turned Aug 8 2014, 10:46 AM
itsmagic Where/what is 'the flapper' ? Thanks. Aug 8 2014, 11:05 AM
Cap'n Krusty Your car doesn't have one. 914 with L-jet onl... Aug 8 2014, 11:09 AM sfrenck There is a nice flowchart for troubleshooting fuel... Aug 8 2014, 11:43 AM Tom To give a little more help, here is a more detaile... Aug 8 2014, 11:58 AM pt_700 my d-jet was one of those rare computer failures.
... Aug 8 2014, 12:05 PM silverbullet75 Sorry for the wrong/misleading info! Aug 8 2014, 12:10 PM rhodyguy so it dies when you stop pressing on the relay? sw... Aug 9 2014, 11:30 AM itsmagic Follow up: Thanks for everyones advice. I carefull... Aug 24 2014, 11:43 AM The Cabinetmaker Great job Wayne. And thanks for checking back and ... Aug 24 2014, 12:55 PM Chris Pincetich I AM GOING THROUGH THE EXACT SAME THING as Wayne, ... Sep 14 2014, 09:01 PM jcd914
The "exposed relay test" does not mean ... Sep 16 2014, 10:37 PM Chris Pincetich :bump:
:confused:
:headbang: Sep 16 2014, 01:26 PM Cap'n Krusty Remember what I said earlier. The main relay powe... Sep 16 2014, 11:01 PM Chris Pincetich thanks for helping! :beer2:
I know my curren... Sep 17 2014, 10:14 AM Chris Pincetich OK, did some testing and ready to do more once I g... Sep 20 2014, 07:46 PM Tom You can narrow down the search some by doing the f... Sep 21 2014, 01:39 AM Chris Pincetich There was no ground signal at the #3 connection of... Sep 22 2014, 11:24 AM Tom Chris,
Yes, If the wires and connections are go... Sep 22 2014, 12:38 PM Chris Pincetich Thanks for confirming, Tom. :beer2:
My 914 needs... Sep 22 2014, 01:38 PM Chris Pincetich Installed an ECU brain - mine was an early one wit... Oct 5 2014, 10:49 PM |
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