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Can the main and fuel pump relays be jumped from the main fuse box red wire 97 legacy outback?


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I've got power to the red wire coming in through the firewall going into an 8 wire plug.  This is where I think the 2 red wires come out of to the main relay, and the one red wire which goes to the FP relay.  There currently is no power to either relay while key is in on postion.  Don'tknow what to do cause I couldn't get the 8 wire plug with the power going into it to release so I could check for power on the other side.  Really in a pickle here cause I gotta have wheels to work?

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I can't find your other posts, but if you can post the links to them we can see if we can get it going for you.

 

Now if the fuel pump isn't energizing and you have no spark than it sounds like there might be a timing belt issue.

The cam position sensor controls fuel

Crank controls spark

 

Since it sounds like your missing both, I'd be willing to bet you have a broken timing belt. There isn't much else that will cause both spark and fuel to fail

 

Also is your check engine light coming on when the key is turned to the on position? This will tell us if the computer is getting power

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Can you match up the same red wire on the engine side of the firewall? I know its kind of tight down in there, you may be able to see it from below, I'm not sure. A mirror could also help.

 

If you can confirm you have power from the fuse box up to the firewall, then the problem is likely to be in that connector. Many large connectors on the firewall like that have a bolt in the middle to hold them together, I don't remember off hand if that particular connector has a bolt or not.

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Well there's 2 red wires coming in 1 goes to the fuse box which is workin, and the other is the direct line from the fusible link that is hot at all times.  so I do have power up to that one to the plug but none beyond which should be hot all the time to those relays.  Just gonna have to get back in there Sat. n see if i can find the bolt your talking about.

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Okay, I was able to find the other posts you mentioned.

Firstly, things would be easier if this was all one thread. Try to stick to one thread for one problem and things will be easier for us to help you.

 

So it sounds like one of your main power wires is not getting full voltage.

Most common issue points for corrosion are under the under hood fuse box and the wiring harness in the wheel well.

 

Now something I have seen happen is people will remove the plastic liner in the drivers side front fender well. Then dirt and road grime pack around the wiring harness causing corrosion in turn causing problems like your having.

 

Under the main fuse box is another place I've traced power supply issues to. Easy enough to figure out. Pull the washer fluid resivour, the bolts holding the fuse box in and flip it over. More than likely you'll sew corrosion in the back of the plugs, if not pull a couple and check for corrosion

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The connector you need is not in a people friendly spot for sure. This particular connector is just a click together type. The lock tab should be on the lower half. The connector should be stuck to a bracket or something and your best bet at getting it apart may be to remove the bracket from the firewall if you can. Otherwise, just get on there with a prybar and knock the connector off the bracket so you can try to pull it down where you can get at it easier.

 

The bottom half of the connector you should be able to get to I think. That's the side that comes fom the main fuse box under the hood. The big red wire on the end should have 12V. If 12v is on one half but not the other there is a problem inside the connector, either corrosion or the terminals burned. You'll probably want to splice in a new section of wire and just bypass the connector.

 

If you don't have 12v at all at that plug, the problem is either at the main fuse box or between the main box and the firewall.

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FT4M thanks that is what I have been thinking, because I do have 12v at the plug just not beyond.  What I have been thinkin is getting the plug down checking to make sure there is no power on the other side (which I'm pretty sure there isn't) and then rather discarding the plug just jump from the red wire coming in to the 3 red wires going out to the relays.  The reason for saving the plug being with the numerous other wires going into it I don'tknowwhat else I may be cutting off ifI remove the power from it?

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The plug is just there to join the two harnesses together. The red wire goes in one side and right back out the other. There's no connection between pins inside that plug.

 

If you have no power at the relays, but do have it at the accessible side of the plug, I would suspect the terminal for the red wire is burned inside the plug, but there could also be a problem where the wires are spliced together.

If you can get to the splice, cut part of the insulation off and look for corrosion there.

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FT4M does the red wire coming thru the firewall inot the plug only feed those relays, and the juntion to the other stuff off the FP relay line?  Could I splice in directly from the red wire coming in to the wires comin in to the relays?  It's a real beast trying to get to the other side of that plug even though I cut it free I still can't pull it down far enough!

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