 $10 paypal to someone willing to help diag my poor 2.0! |
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| bliggity |
 Sep 29 2011, 07:36 AM
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#1
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Newbie  Group: Members Posts: 4 Joined: 10-July 11 From: GA Member No.: 13,297 Region Association: None  |
I have a 74 2.0 with the factory fuel injection. I have replaced plugs, cylinder head temp sensor, electronic ignition/ coil, air filter, relocated fuel pump, fuel filter. All done about 300 miles ago. Car ran great for that 300 miles but now I have an issue I didnt want to have someone else fix but after a month of chasing I am clueless (IMG:style_emoticons/default/sad.gif) I can cold start the car and it will idle great and stay idling great 9/10 times. When I start to drive the car its fine for 30 secs to 2-3 mins then it will start to chug out and begin to die out, I can blip the throttle hard and it will rev for a few more secs then it will just die out. After it dies it will try to start but just cranks but never fires. It will then begin to have a strong smell of fuel. If I let the car sit for roughly an hour or more I can go crank it up and drive for 30 secs or so then it dies out. I have tried unplugging injectors to see if one is stuck open but I dont think so bc it is not constant. Let me know if anyone has any ideas. Please help, Im frustrated beyond belief (IMG:style_emoticons/default/driving.gif) I have messed with the ecu adjuster knob but does not help enough to fix issue. TIA for any help!
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Replies(1 - 13)
| hot_shoe914 |
Sep 29 2011, 07:43 AM
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#2
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on ramp passer Group: Members Posts: 3,802 Joined: 20-November 07 From: Earle, Ar. Member No.: 8,354 Region Association: None |
Did you replace fuel filter or just relocate it? Have you checked fuel pump for proper pressure?
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| BajaXJ92 |
Sep 29 2011, 07:44 AM
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#3
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Extended Member Group: Members Posts: 2,146 Joined: 20-April 06 From: Prescott, AZ Member No.: 5,895 Region Association: MidAtlantic Region |
I see you're in Georgia. There are a few 914 guys around that area that would be more than willing to help out.
Put that $10 towards beer and invite a few of them over, their knowledge is invaluable! (IMG:style_emoticons/default/beerchug.gif) |
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| Cap'n Krusty |
Sep 29 2011, 07:54 AM
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#4
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
Look under the tank for a kinked fuel line. BTW, when you moved the pump, did you replace the nylon lines through the body? They were never meant, even when new, to handle 30+ psi for extended periods.
The Cap'n |
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| 76-914 |
Sep 29 2011, 08:06 AM
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#5
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,513 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California 
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QUOTE(Cap'n Krusty @ Sep 29 2011, 06:54 AM)  Look under the tank for a kinked fuel line. BTW, when you moved the pump, did you replace the nylon lines through the body? They were never meant, even when new, to handle 30+ psi for extended periods. The Cap'n Define extended periods. Mine are 35 yr's old. Or did you mean greater than 30 psi?? (IMG:style_emoticons/default/confused24.gif) |
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| bliggity |
Sep 29 2011, 09:42 AM
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#6
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Newbie Group: Members Posts: 4 Joined: 10-July 11 From: GA Member No.: 13,297 Region Association: None |
QUOTE(hot_shoe914 @ Sep 29 2011, 09:43 AM) Did you replace fuel filter or just relocate it? Have you checked fuel pump for proper pressure? I relocated pump and replaced fuel filter, have not checked fuel pressure. I figured since I was getting a strong fuel smell it didnt have a shortage of fuel. |
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| Cap'n Krusty |
Sep 29 2011, 09:50 AM
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#7
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
QUOTE(76-914 @ Sep 29 2011, 07:06 AM) QUOTE(Cap'n Krusty @ Sep 29 2011, 06:54 AM) Look under the tank for a kinked fuel line. BTW, when you moved the pump, did you replace the nylon lines through the body? They were never meant, even when new, to handle 30+ psi for extended periods. The Cap'n Define extended periods. Mine are 35 yr's old. Or did you mean greater than 30 psi?? (IMG:style_emoticons/default/confused24.gif) Your '76 was equipped with black 8mm Teclamit fuel lines, which are capable of handling the pressures found in a CIS system, 2-3 times higher than D-jet uses. They've proven to have a long life. Earlier 914s have a nylon line through the body that was meant to be a supply line, NOT a pressure line. The Cap'n |
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| DRPHIL914 |
Sep 29 2011, 10:12 AM
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#8
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Dr. Phil Group: Members Posts: 5,769 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States
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QUOTE(Cap'n Krusty @ Sep 29 2011, 09:54 AM) Look under the tank for a kinked fuel line. BTW, when you moved the pump, did you replace the nylon lines through the body? They were never meant, even when new, to handle 30+ psi for extended periods. The Cap'n (IMG:style_emoticons/default/agree.gif) i had the same thing happen, had kinked the line, but also had a loose line that was leaking, so pull the tank and recheck also hook up a fuel pressue gauge at the driver's side fuel rail, if its up then drops either the pump is bad or line is blocked. Attached image(s) 
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| DRPHIL914 |
Sep 29 2011, 10:15 AM
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#9
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Dr. Phil Group: Members Posts: 5,769 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States
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also i believe if it is d-jet, the default is to run rich so a bad sensor could cause a rich condition, flooding out - a bad MPS on d-jet could cause a flooding out.
where in Georgia are you? anywhere near Savannah?( i'm in S.C. but only a half hour away from savannah) |
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| mgphoto |
Sep 29 2011, 10:38 AM
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#10
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"If there is a mistake it will find me" Group: Members Posts: 1,339 Joined: 1-April 09 From: Los Angeles, CA Member No.: 10,225 Region Association: Southern California |
With the work done, I would suspect a kinked fuel line or reversed fuel filer, but check the FI trigger points, contaminated trigger points have some of the same symptoms.
Good luck, Mike |
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| bliggity |
Sep 29 2011, 07:54 PM
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#11
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Newbie Group: Members Posts: 4 Joined: 10-July 11 From: GA Member No.: 13,297 Region Association: None |
I'm near Atlanta, sounds like if it's a mps or trigger points they are both tough to find ones in good working condition right?
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| DRPHIL914 |
Sep 29 2011, 08:46 PM
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#12
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Dr. Phil Group: Members Posts: 5,769 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States
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QUOTE(bliggity @ Sep 29 2011, 09:54 PM) I'm near Atlanta, sounds like if it's a mps or trigger points they are both tough to find ones in good working condition right? Check thru the other stuff first, but if all else is o.k. trigger points plate can be had for about $200 new, . M.p.s. can be tested, check to see if it holds vacation. If not, place an add in classifieds. Usually there are a few out there used in good working order for u.der $200. . Are you running d jet,? Go to jeff bowlsby's site he is a fuel injection guru, and has the bosch manuals and other resources, and he makes replacement wiring harnesses etc. Auto atlanta, automotion and pelican parts all carry much of what you may need if you can't fins good used stuff here. |
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| avidfanjpl |
Sep 30 2011, 12:30 AM
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#13
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914 Hemophiliac Group: Members Posts: 720 Joined: 6-April 10 From: Bear, Delaware Member No.: 11,566 Region Association: MidAtlantic Region |
You should also be reading the Rennlist PBanders stuff on 914 D Jet.
Pretty much the definitive inventory. Sounds like trigger points and/or MPS. Not cheap, but both when working right, are instant fixes. I replaced my trigger points in 2009. My MPS works properly. Leakdown test is on PBanders writeups. Read it all several times. Good luck! John http://members.rennlist.com/pbanders/djetparts.htm http://members.rennlist.com/pbanders/ecu.htm |
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| somd914 |
Sep 30 2011, 03:54 AM
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#14
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Member Group: Members Posts: 1,171 Joined: 21-February 11 From: Southern Maryland Member No.: 12,741 Region Association: MidAtlantic Region |
MPS are available through AA and Automotion, not cheap. You can check MPS resistance and for vacuum leaks to determine its health or lack there of.
This summer I fought a problem where the car would run for a while, sometimes just 3-5 minutes, sometimes longer. Turned out to be a broken wire on the CHT, that would be the FI wiring harness wire, not the the CHT lead. My assumption is as the wire heated and expanded, it would break the contact. It finally completely opened up which then made troubleshooting easy. An open circuit on the CHT will make starting difficult or impossible, and it won't run as the engine floods quickly. Also, do you have spark when this happens? As mentioned earlier, see the following renlist link for troubleshooting: http://members.rennlist.com/pbanders/djetparts.htm If it turns out to be your MPS, PM me, I have an extra that is not prime but works. |
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