 Troubleshooting a 76 2.0- Died & will start, Starts briefly before cutting out again |
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| JRust |
 Jan 10 2010, 06:10 PM
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#1
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914 Guru  Group: Members Posts: 6,307 Joined: 10-January 03 From: Corvallis Oregon Member No.: 129 Region Association: Pacific Northwest 
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Okay so I got a call from a fellow 914 guy. His son broke down at school in Corvallis. I live here so I gladly go to take a look. His son was driving & shifted from first to second & it stalled while doing it. It wouldn't start back up at first. Then did & he was barely able to limp it the 5 blocks home. This was with it dying I don't know how many times.
They thought maybe the fuel pump is going out or a pinched fuel line. While he started it for me it died just as he described. I pulled the plate off the fuel pump in the front trunk. I had him start it again. Fuel pump comes on then turns off right about the time it dies. It is so close I amnot sure if it goes off before or after the car dies. I would assume before as that would make sense. The fuel pump only comes one for about 2 seconds if you just turn the key on but don't start it. Does this sound like the fuel pump is going out? Or does this sound like the fuel pressure regulater isn't giving the right signal? Am I asking the totally wrong question? |
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| 76-914 |
Jan 10 2010, 06:14 PM
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#2
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,497 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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QUOTE(JRust @ Jan 10 2010, 04:10 PM)  Okay so I got a call from a fellow 914 guy. His son broke down at school in Corvallis. I live here so I gladly go to take a look. His son was driving & shifted from first to second & it stalled while doing it. It wouldn't start back up at first. Then did & he was barely able to limp it the 5 blocks home. This was with it dying I don't know how many times. They thought maybe the fuel pump is going out or a pinched fuel line. While he started it for me it died just as he described. I pulled the plate off the fuel pump in the front trunk. I had him start it again. Fuel pump comes on then turns off right about the time it dies. It is so close I amnot sure if it goes off before or after the car dies. I would assume before as that would make sense. The fuel pump only comes one for about 2 seconds if you just turn the key on but don't start it. Does this sound like the fuel pump is going out? Or does this sound like the fuel pressure regulater isn't giving the right signal? Am I asking the totally wrong question? The pump will start and run appx 1.5 sec's when energized by switch. |
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| ws91420 |
Jan 10 2010, 06:16 PM
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#3
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Yes I have one a Lensley 914 Group: Members Posts: 2,063 Joined: 10-September 03 From: Ruther Glen,VA (halfway between sticks and civilization) Member No.: 1,137 Region Association: MidAtlantic Region |
FP will only come on for 2 sec unless the engine starts. Check the fuel filter prior to the pump and make sure it is full. I could never get the filter on mine to fill because of restiction of flow from the tank. If too much air gets in there it can capitate the pump.
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| jsayre914 |
Jan 10 2010, 06:16 PM
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#4
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Speed Up !!! Group: Members Posts: 3,188 Joined: 10-February 08 From: Timonium MD 21093 Member No.: 8,696 Region Association: MidAtlantic Region |
use a fuel pressure guage from the driver side fuel rail nipple. watch it, you will know if the pump was the culprit.
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| Jakeodoule |
Jan 10 2010, 06:19 PM
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#5
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Member Group: Members Posts: 353 Joined: 10-October 08 From: Des Moines Iowa Member No.: 9,630 Region Association: Pacific Northwest |
JR,
I have every part in the fuel injection, including the computer. Your welcome to borrow everything to figure it out. Then I'll just sell you what you need. Let me know. QUOTE(76-914 @ Jan 10 2010, 04:14 PM) QUOTE(JRust @ Jan 10 2010, 04:10 PM) Okay so I got a call from a fellow 914 guy. His son broke down at school in Corvallis. I live here so I gladly go to take a look. His son was driving & shifted from first to second & it stalled while doing it. It wouldn't start back up at first. Then did & he was barely able to limp it the 5 blocks home. This was with it dying I don't know how many times. They thought maybe the fuel pump is going out or a pinched fuel line. While he started it for me it died just as he described. I pulled the plate off the fuel pump in the front trunk. I had him start it again. Fuel pump comes on then turns off right about the time it dies. It is so close I amnot sure if it goes off before or after the car dies. I would assume before as that would make sense. The fuel pump only comes one for about 2 seconds if you just turn the key on but don't start it. Does this sound like the fuel pump is going out? Or does this sound like the fuel pressure regulater isn't giving the right signal? Am I asking the totally wrong question? The pump will start and run appx 1.5 sec's when energized buy switch. |
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| underthetire |
Jan 10 2010, 07:19 PM
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#6
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
I agree with the gauge. The pressure regulator is just that, has no control over anything else on a Djet.
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| gasman |
Jan 10 2010, 07:29 PM
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#7
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Member Group: Members Posts: 107 Joined: 21-January 08 From: Mooresville, nc Member No.: 8,602 Region Association: South East States |
Remember that the initial "key on" has the pump on for about 1 1/2 sec....The pump will come back on when the trigger points detect the distributer turning. Make sure that the wires to the trigger points are connected and have a good connection.....next check the relay in the engine bay that it clicks on when cranking....or swap out with the headlight relays....it works this way so in an accident, the engine stops and the pump wont keep on pumping.....which is a good thing.
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| Mikey914 |
Jan 10 2010, 10:28 PM
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#8
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The rubber man Group: Members Posts: 12,659 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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Thanks Jamie,
This is actually my car that I let my boy (the real mikey 914) borrow. Unfortunately, I've been traveling and haven't been able to get down to help out. If it helps the ignition switch is new, there was a problem with it not energizing the pump as it was worn out. Replaced it about a month ago. I apreciate the help Jamie. -Mark |
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| detoxcowboy |
Jan 10 2010, 10:35 PM
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#9
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Senior Member Group: Members Posts: 1,294 Joined: 30-January 08 Member No.: 8,642 Region Association: Africa |
This may be a "stupid" input but it happened to me with same symptoms, drive 5 blocks on throttle and then die, start right up drive some more then die, seemed like if I kept the throttle high it would run farther.. solution? Loose Battery Cable.. Just putting it out there...
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| JRust |
Jan 10 2010, 10:35 PM
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#10
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914 Guru Group: Members Posts: 6,307 Joined: 10-January 03 From: Corvallis Oregon Member No.: 129 Region Association: Pacific Northwest
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I will go switch the relays first. That is easy & I should of thought of doing that while I was there (IMG:style_emoticons/default/headbang.gif) . I didn't pop the distributor cap. I thought trigger points might be a possibility. It's been a while sinc eI have triend to troubleshoot. I can't claim to have ever been to good at it to begin with. So after looking I came home to read my Clymer manual. Of course posting a thread always get's better results. I did both so I will have a better idea when I go back out. Hopefully tommorow (IMG:style_emoticons/default/smile.gif) .
That is a nice looking green Marc. Is it Delphi green? Oh yeah I noticed the 5-lug conversion done. I had a good laugh when I pulled out the 4-lug spare (IMG:style_emoticons/default/lol-2.gif) . Which was flat by the way (IMG:style_emoticons/default/poke.gif) |
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| tod914 |
Jan 10 2010, 10:41 PM
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#11
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Advanced Member Group: Members Posts: 3,755 Joined: 19-January 03 From: Lincoln Park, NJ Member No.: 170 |
JR, you can rule out the pump by running wires to it directly from the battery. Not sure if that will help, but a suggestion anyway.
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