 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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Replies(20 - 21)
| Chris Pincetich |
Sep 22 2014, 01:38 PM
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#21
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B-) Group: Members Posts: 2,082 Joined: 3-October 05 From: Point Reyes Station, CA Member No.: 4,907 Region Association: Northern California |
Thanks for confirming, Tom. (IMG:style_emoticons/default/beerchug.gif)
My 914 needs a new brain (IMG:style_emoticons/default/laugh.gif) I've learned a lot during this process and REALLY APPRECIATE all the great advice (IMG:style_emoticons/default/pray.gif) |
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| Chris Pincetich |
Oct 5 2014, 10:49 PM
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#22
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B-) Group: Members Posts: 2,082 Joined: 3-October 05 From: Point Reyes Station, CA Member No.: 4,907 Region Association: Northern California |
Installed an ECU brain - mine was an early one with a VW part # ending in "B" and now I have a newer version with the part # ending in "E" - and everything is going great (IMG:style_emoticons/default/beerchug.gif)
In fact, I think it runs better overall with the "new" ECU. I also inspected my TPS circuit board, as I was experiencing a "hiccup" at 2800-3200 RPM. Unplugging the TPS made the hiccup virtually go away, and the TPS board had some deep grooves. So, bent the little arms to get the contact back on good circuit board and out of the grooves, and the "hiccup" is gone. Time for more driving (IMG:style_emoticons/default/beerchug.gif) |
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