 Troubleshooting: 2.0 won't stay running |
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| Nate |
 Nov 26 2014, 03:36 PM
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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 |
Nov 28 2014, 09:05 PM
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Newbie Group: Members Posts: 47 Joined: 21-August 14 From: Southern California Member No.: 17,807 Region Association: Southern California |
Alright guys. I've tried everything you have recommended I check. Just finished installing a potentiometer in line with the cylinder head temp sensor and have messed with different ohm values to try to get it to run. This is a 73 and I'm not running the ballast resistor. Could that be the problem?
This car ran 10 years ago. I just rebuilt the motor but didn't change any sensors or electronics aside from rebuilding the distributor with new cap, points, etc. I should also mention that it ran better than this a few weeks ago before I realized the injectors were gummed up and sent them off for cleaning. Any other diagnostics I can perform to get this thing going? It needs to get back on the road and it's so close! |
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Posts in this topic
Nate Troubleshooting: 2.0 won't stay running Nov 26 2014, 03:36 PM
saigon71 Have you tested your fuel pump? Nov 26 2014, 04:21 PM gasman Got to put a gauge on the fuel system..(fuel rail)... Nov 26 2014, 04:32 PM Nate I have not bench tested the fuel pump but I can se... Nov 26 2014, 04:41 PM
saigon71
I have not bench tested the fuel pump but I can s... Nov 26 2014, 04:59 PM pvollma
I picked up a kit at Harbor Freight for less than... Nov 27 2014, 01:46 PM saigon71
I picked up a kit at Harbor Freight for less tha... Nov 27 2014, 08:21 PM 914_teener Find somebody close to help you. Nov 26 2014, 05:31 PM Nate Good call on a harbor freight fuel pressure gauge.... Nov 26 2014, 05:34 PM toadman Although they are nearly bullet proof, I had start... Nov 26 2014, 07:56 PM boxsterfan Cylinder Head Temp Sensor?
Been through the pba... Nov 27 2014, 12:13 AM Java2570 Check out your trigger points in the base of the d... Nov 27 2014, 09:56 AM Luke M Cylinder Head Temp Sensor?
I agree check it.. A ... Nov 27 2014, 10:08 AM Nate
Check out your trigger points in the base of the ... Nov 28 2014, 01:18 AM Java2570
Check out your trigger points in the base of the... Nov 28 2014, 06:47 AM Nate Okay guys. So, I resoldered the points plate groun... Nov 28 2014, 04:18 PM 76-914 You can add a resistor to the std temp sensor or i... Nov 28 2014, 08:19 PM bandjoey Points and condenser or the little electronic gadg... Nov 28 2014, 09:03 PM Nate Joey. I'm using stock style points and condens... Nov 28 2014, 09:06 PM bandjoey Sounds like it's time for a BBQ and repair par... Nov 28 2014, 09:24 PM Java2570 Yep, being in Southern CA you should be able to ge... Nov 28 2014, 09:35 PM boxsterfan Tried a different ignition switch? Injector to ec... Nov 28 2014, 10:47 PM Nate
Tried a different ignition switch? Injector to e... Nov 28 2014, 11:38 PM boxsterfan
Tried a different ignition switch? Injector to ... Nov 29 2014, 12:20 AM gasman When the engine stalls....do you still have 30 PSI... Nov 29 2014, 07:13 AM Bartlett 914 My first thought was a pinched or kinked fuel line... Nov 29 2014, 11:54 AM Nate Okay. So I checked for a kinked fuel line and did ... Nov 30 2014, 04:05 PM boxsterfan
Okay. So I checked for a kinked fuel line and did... Nov 30 2014, 04:22 PM Java2570 You never really said whether you were using the o... Nov 30 2014, 04:35 PM Nate I'm not sure what the fuel psi is right before... Nov 30 2014, 05:02 PM Bartlett 914
I'm not sure what the fuel psi is right befor... Nov 30 2014, 06:08 PM Nate
The Fuel pump has a check valve in it. The fuel i... Nov 30 2014, 06:23 PM Java2570
The Fuel pump has a check valve in it. The fuel ... Dec 1 2014, 07:53 AM Phoenix914 The fuel filter may be partially clogged and restr... Dec 1 2014, 07:11 AM 914_teener So..... why would you check the trigger points bef... Dec 1 2014, 09:21 AM bandjoey Fuel filter flow on backwards? Dec 1 2014, 10:15 AM Nate Fuel is flowing through the filter the correct way... Dec 1 2014, 12:11 PM 914_teener At the right rate? If not then that sounds like s... Dec 1 2014, 01:38 PM Nate I pulled the plugs today. Don't really know wh... Dec 1 2014, 08:28 PM gasman Remove and clean the relays on the board in engine... Dec 1 2014, 10:55 PM Nate A little more info to add to this dilema. I steppe... Dec 3 2014, 08:00 PM Java2570 Since you are going through all of this testing, e... Dec 3 2014, 08:27 PM Nate When I rebuilt the motor. Motor has maybe 20 minut... Dec 3 2014, 09:06 PM boxsterfan Can't remember if you checked these:
Ignition... Dec 3 2014, 10:04 PM Nate Throttle body and TPS are working and busted accor... Dec 3 2014, 10:34 PM Bartlett 914
Throttle body and TPS are working and busted acco... Dec 4 2014, 07:41 AM Nate I tested the injectors on the car.
Just wanted t... Dec 5 2014, 02:20 PM 914_teener
I tested the injectors on the car.
Just wanted ... Dec 5 2014, 03:36 PM Phoenix914 Glad you found the problem, Nate.
:trophy: Dec 5 2014, 02:33 PM Nate Seriously! Got the job offer yesterday that I... Dec 5 2014, 02:44 PM Nate
Question:
Did you degree the cam in at zero lash... Dec 5 2014, 04:41 PM 914_teener Nate:
Maybe something went wrong with your cam as... Dec 5 2014, 09:17 PM Nate I know that I lined up the cam gear and the cranks... Dec 5 2014, 10:46 PM |
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