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Nate |
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#1
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Newbie ![]() Group: Members Posts: 47 Joined: 21-August 14 From: Southern California Member No.: 17,807 Region Association: Southern California ![]() |
Hey everyone! Hope you are all preparing for a nice thanksgiving.
Wanted to see what ideas you guys had about my original FI 2.0 from 73. Some of you may have seen a few other threads of mine but I'll give a little synopsis. I rebuild the motor in my garage. New Pistons and cylinders, all new bearings, lifters. Ground crank and cam. Heads rebuilt by a reputable shop. For the rest of the car. New fuel lines, cleaned and coated fuel tank. New fuel filter. Cleaned and flow matched fuel injectors. Rebuilt distributor. Tuned dwell angle and set static timing. So I've done all of that and the car won't stay running. It'll start and run for 20 seconds with a high idle (approximately 2500 rpm's) and then it will die even if I'm feathering the throttle. I'm looking for ideas as to what and how to troubleshoot the car. IF this car was a person I'd strangle it to relieve my frustration. P.S. I went through the ecu harness and ohm'd everything out and there are no shorts in the wiring and the grounds are solid. I also replaced the throttle position switch and have that set up according to the book and have messed with the idle mixture knob a bit. Anyone have any ideas on where I should go from here? Thanks and I wish everyone a good safe holiday. |
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Nate |
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#2
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Newbie ![]() Group: Members Posts: 47 Joined: 21-August 14 From: Southern California Member No.: 17,807 Region Association: Southern California ![]() |
The Fuel pump has a check valve in it. The fuel is leaking back into the tank past this valve. This amount of pressure drop after the pump shuts off is pretty common and not a real problem That's the impression I was under. Thanks for confirming. I think I'm going to try some new FI points in the bottom of the distributor. These weren't part of my rebuild kit and I figure it couldn't hurt to try them out because they are cheap. Can anyone confirm which distributor I have though? There is stuff crossed out so I want to be sure I have the right one and order the right points. (IMG:http://www.914world.com/bbs2/uploads_offsite/i1292.photobucket.com-17807-1417393386.1.jpg) Looks like 039 905 205 A. This doesn't appear to be the right distributor for my year (73) but I know the car ran before with it. |
Java2570 |
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#3
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Senior Member ![]() ![]() ![]() Group: Members Posts: 649 Joined: 7-May 11 From: Fishers, IN Member No.: 13,035 Region Association: Upper MidWest ![]() |
The Fuel pump has a check valve in it. The fuel is leaking back into the tank past this valve. This amount of pressure drop after the pump shuts off is pretty common and not a real problem That's the impression I was under. Thanks for confirming. I think I'm going to try some new FI points in the bottom of the distributor. These weren't part of my rebuild kit and I figure it couldn't hurt to try them out because they are cheap. Can anyone confirm which distributor I have though? There is stuff crossed out so I want to be sure I have the right one and order the right points. (IMG:http://www.914world.com/bbs2/uploads_offsite/i1292.photobucket.com-17807-1417393386.1.jpg) Looks like 039 905 205 A. This doesn't appear to be the right distributor for my year (73) but I know the car ran before with it. The 205A was for '74 2.0L, it should work ok for your car....not sure what was changed on your dizzy. Maybe it was recurved to be a 205A? 205B was the dizzy for '75-76. As far as I know, the trigger contacts were all the same part # shared with all the different engines. Be careful buying new trigger contacts, I've heard that some being sold are counterfeit.....I don't think new units are being made anymore. Contact Bruce Stone for good trigger contacts, he should have some. |
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