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Showing results for tags 'ground'.
Found 9 results
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Yesterday I removed the blower motor for diagnostics and replaced its relay near the in-cabin fuse box of my 2004 Outback Limited. Replacing the relay solved the problem with the blower motor. When putting the blower motor back in place, however, I had to really pull and mush on a large mass of wires that runs directly below the blower motor. It was not a simple task to take the motor out or put it back due to this large group of wires (roughly 1-2 inches in diameter) running right under the blower motor with very little room to budge. Immediately after getting the motor back in position, my car would not start and the fuel pump relay would buzz madly with the key in ignition. The stereo receiver died and the lights on the dash were dying. After turning my car off, a part under the hood began to buzz and all the electrical equipment began to rhythmically click and turn on/off. I disconnected the battery and went to bed. I messed something up when getting the blower motor back in. I pulled wires loose or damaged them. The wires branch off after passing the blower motor, some running to the blower and the rest running up the passenger side of the car. When getting the motor back in I pulled on a small black circle with three little holes in it, above where the passenger would rest his feet. It appeared to feed into the group of wires and run out to the engine compartment. Maybe this is important. Any information regarding troubleshooting or what could be wrong with my car would be very helpful. Thank you. Attached are pictures of items I mentioned in the post: the fuel pump relay, the part under the hood that buzzes, the group of wires under the blower motor, and the black circle with the three holes in it.
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Hi all, I've posted this on nasioc but gotten nothing so far, so I figured i'd post here. I am almost done replacing the engine in my 2000 legacy outback wagon after an engine failure (metal scraping noises!) I have everything back but the thing won't start I have been troubleshooting all week after work and all day last Saturday but still haven't fixed the problem. Here is the full story.... After not getting a start I started doing the basic checks. Fuel, check. Injectors firing, check. Good battery, check. Timing(just did it during install) check. Crankshaft sensor test and replaced, check. While checking the spark I found that it was non-existant and or weak and inconsistent so I tested and swapped in a spare coil pack I had from the donor engine...no change. I tried checking power to the coil, that was good and did NOT dip during crank. I checked coil pack signal, I got some pulses but I do not have a good enough oscilloscope to really see what I was getting(OC is from the 50s...) After this I started reading through the FSM religiously I found some info about the crankshaft sensor which I know drives the timing for spark, which might explain my spark issues. So I went through the troubleshooting steps for that sensor. The sensor checked out via a resistance check, but I replaced it anyway simply to rule it out. Next, the manual said to check the wiring by unplugging the sensor and checking resistance to ground. Pin 1 (left most pin) is supposed to read between 10ohm and 100K ohm. I tested it at 90K ohm...so a little bit high. Pin 2, supposed to be < 10ohm to ground. Tested, 1.5k ohm. So bang out of tolerance. For this the FSM says to "In this case, repair the following: I Open circuit in harness between crankshaft position sensor and ECM connector I Poor contact in ECM connector I Poor contact in coupling connector (B21)" Going off this I figured it was best to isolate parts of the wiring and test them individually. So I tested E10 to E2 AKA the connector to the sensor that then runs to the gray connector that is on the intake manifold wiring said. This circuit checked out A-OK with both wires showing 0-ohm resistance from both ends. Next, I check the other side so B21 to B135 AKA bulkhead side wiring to ECM wiring(middle connector). This also checked out a-ok. After this, I deduced that it must be the connectors, so I connected everything back together, and unplugged both ends, ECM and sensor side (B135 and E10). Then I tested resistance from end to end and across the wires to make sure there was not a short. Again, everything checked out a-ok. At this point I was beyond stumped, I seemingly had checked everything and it still wasn't working. As soon as I would plug the wire back into the ECM my test results would be bad. I began trying different ground test points, start, battery, intake manifold, ECU housing, intake manifold. All tested the same or within the margin of error. I even checked the same measurements on a 04 legacy outback I have and the readings I got off that working car for the sensor wire to ground measurements were well within spec. By now I am pretty convinced that it is a ground issue so I look up all the ground points on the ECU as defined by the FSM. The only one that did not test 0 ohm to ground was ground on pin 6 of B135 ECM connector(middle orange for me). I got a reading of about 320ohm to ground which, is not high, but I think higher than it should be. I chased this wire using the FSM to pin 16 on B22(big brown connector engine bay) I tested from ECM to B22 and got about the same reading again. Which when you think about it is actually interesting. Why between two points that are "supposed" to be directly connected is there the same resistance as there is to ground...that's weird! I started digging through the FSM again checking the wiring diagrams and finding all the places this wire connect. According to the FSM I have this wire connects to the, fuel gauge sub-module, neutral position switch, vehicle speed sensor, check connector, and data link connector. That is where I am now, I'm trying to identify all the places it runs and start testing parts of the circuit. But, I figured it was finally time to ask a question on a forum or two and see what you guys think. Am I missing something super obvious? Any tips for tracking this issue down? The weird thing about this is that the car ran before I pulled the engine and dropped in a new one. I started the process about 3 months ago, and have been slowly working on it till now. During the swap I made sure to keep my intake manifold, and crankshaft pulley. It was an auto to manual swap so there was actually quite a few parts to switch over...so maybe I missed something? ANY help would be truly appreciated, below is a link to the relevant sections FSM if anyone wants to take a look and double check my findings. I am reallllly stumped at this point. FSM: Look at engine sections for crankshaft sensor testing and Wiring diagram for plug locations and wiring diagrams. https://drive.google.com/folderview?...UE&usp=sharing P.S. Hopefully it didnt take you as long to read this as it did for me to write it! -
Hi all, well so I finally got the motor back in the car yesterday and I'm currently putting things back together on top the engine. In reattaching all the wiring harness connections, I found a ground cable with an eye on it that I can't seem to figure out where it goes. From sizing the inside diameter with calipers, I believe it goes on an 8mm bolt. As most of the individual wires and plugs go off in pretty well defined directions, this cable seems like it should be situated somewhere on the passenger side of the engine. I don't have the intake manifold on yet, but maybe it goes on there or something. I'll try to get a pic of the culprit ASAP. Any ideas on where this connection lives? Thanks for any help in advance! -
So I got a new battery after I had my old one tested at Auto Zone and they said it was bad. New battery is good and worked fine, but after three days I went to start it and I got nothing that time. It can't be the starter cuz that is new too, I had it put in some months back and didn't even run the car that much, plus I had my brother tap it while I tried to start car and still nothing. Anybody got any idea? Could it be the alternator? -
I came into possession of a pair of Harbor Freight Specials, they were basically free to me, and the mount I made for them actually cost slightly more! I have them mounted, but need to ground them before I try wiring them up. The only place I can see is the solid metal member/bar going through the lower part of the front bumper. I had a chat with a Subie service rep, he suggested drilling into the back of the member to screw in a place for the ground. Back or bottom, a drill is not getting into there without removing the bumper. If I removed the radiator, I could get to the back of that member, but I'm looking for any viable alternatives. The member has some half inch holes already punched in the back, maybe I could file away at one of those and get some sort of mount for the ground? Here's pictures of the ongoing project, I had sealed the glass to the cheap rubber seals with some silicone adhesive. http://postimg.org/gallery/1kzfuzjc0/ -
84 Brat Intermittently Grounding Out?
jmoss5723 posted a topic in Old Gen.: 80's GL/DL/XT/Loyales...
I did some searching, but I didn't come up with much and electrical issues are my biggest weakness. So if I'm asking dumb questions, please enlighten me with your ingenuity. The car: 1984 Brat with a replaced EA81. When the engine was replaced, some "extras" were removed and I definitely have some wires to nowhere. The issue: Recently, when I turn the key to start the car, 1 of 2 things happen. It either: 1. Starts right up. OR 2. The dash lights up, the battery gauge needle hits about 8-10V and the starter doesn't turn. If it starts and I drive it there are no issues. If I roll start it, jump it with the 50 amp setting on my batter charger, or jump it from another vehicle there are no issues running it and driving it. Once it is running the needle sits just above 12V and everything is great. I got my battery tested. It is supposedly fine. It seems that no matter what, if I drive the car then shut it off, it always starts back up if I try within a few minutes. The questions: Is my starting circuit grounding somewhere intermittently and killing my battery? I'm assuming an intermittent short to ground because sometimes the battery is fine and other times it gets drained very quickly. What should I look for? Edit: I'm not sure if it matters, but the car had been mostly sitting for a year while I worked on it off and on to finish the lift and do some rust repairs to pass inspection. I just started driving it again last week and that is when the issue started. Edited again for grammar. -
Just picked up a 1990 legazy auto for cheap. only got it cheap because a pack rat ate the engine harness up. so i got a new harness from a junk yard. replaced it and turns out it has been parked the past 4 years was im pretty sure the ignition control module went out. only cylinders 1 and 2 firing. not 3 and 4. well did research on here and check the continutiy between the coils and control module. good. changed coils. no change. so going to get a new on of those. but to be sure that it's not a ground issue i need help locating where this one ground goes. on the passenger side under the abs unit there are 2 grounds. one from the headlight harness that goes to body and the other one i can not find any place that it would hook up. can some on please point me in the right direction or picture. i got the manual with the ground locations but its so vauge it just doesn't help. thanks
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So, here is the situation: My drivers side door was pulled from a car with power windows/locks, but my Loyale has manual windows and locks. The window obviously doesnt work, and I want to fix that.. Even if it is a "jimmy rig." I will shell out a few bucks for a manual door if i cant figure out something good. Bear with me here because I know jack squat about electronics/wiring. I want to know, is there a way to wire the window switch up to my battery? The back of the switch is a mess, it has 5 or 6 posts with a wire running to another switch, and some 10 ohm resistors(i think) running between posts. I was thinking it would be a bit more simple. Any way to just power the window motor itself? i dont really see how i could control up/down that way though. Secondly, can i just go pull a few things off of a door at pick n pull, such as the manual handle, and whatever else i need? I am starting to feel dumb here but i'm a bit stumped and its getting awfully warm out to have a stuck window. I wanna feel the breeze this summer. If i should post pics, let me know. Your help is greatly appreciated, if you have ever dealt with something like this before. An idea is an idea so throw em out there if you got em, fellas! - Walker -
Okay so its not literally purple lightning but thats what it looks like. My coil is arcing between the posts with purple "lightning". Ive never seen this before nor do I know how to diagnose this.... any ideas as to whats wrong? Is the coil itself bad or is it something I can fix? i.e. is it not grounded properly etc.... thanks for the input! I just wanna get my 81 sedan back in tip top condition so i can get it to the show this coming year.
