1971 914-4 Frankenstein, w/ 912E 2.0 L-Jet FI? |
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1971 914-4 Frankenstein, w/ 912E 2.0 L-Jet FI? |
mikesjunk |
Dec 20 2015, 05:39 PM
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#1
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Member Group: Members Posts: 71 Joined: 29-November 15 From: goddard, KS Member No.: 19,423 Region Association: None |
Ok so I'm working on a 1971 914-4 which from another thread it appears to have a 75-76 2.0 912E L-Jet FI system on it from the PO.
I have plumbed new fuel lines through out the car, cleaned fuel tank and it has fresh gas. I went through the dual relay and redid it all which I did find one wire on the wrong terminal from the diagram I had. The previous symptom was that it would start and then die when the key was released. So I threw a battery in it and yep that's what it does. It will fire and run momentarily then die. First issue is that I don't hear the fuel pump run. It's currently wired from the original harness with some PO adds ons like a fuse. It is not wired to the dual relay but back into the harness that runs to the relay box. I put a meter on it while testing and didn't ever see any voltage. So to make sure this wasn't the issue I hot wired it to run off the battery while I tested that. But that didn't fix the main issue. Next item is that the ignition switch looks like it's from the movies and has been hot wires. Of course they did it through and around the knee pad so I'm digging into that now. I unwired it so I could remove the knee pad. From the ignition switch area there looks like 4 wires. red, red/black stripe, a black and a gray. The gray one wasn't hooked to anything. (IMG:http://www.914world.com/bbs2/uploads_offsite/www.mikesjunk.com-19423-1450654793.1.jpg) From the harness there were 5 wires. The Black/Yellow and Blue/Yellow weren't hooked to anything. (IMG:http://www.914world.com/bbs2/uploads_offsite/www.mikesjunk.com-19423-1450654793.2.jpg) I'll start researching the wiring diagrams but anyone want to post a response to short cut this would be appreciated. Also the key/cylinder feels pretty bad so anyone recommend someone who can go through it? I saw a guy on ebay listing this but looking for recommendations as it will need something eventually. |
mikesjunk |
Jan 3 2016, 10:57 AM
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#2
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Member Group: Members Posts: 71 Joined: 29-November 15 From: goddard, KS Member No.: 19,423 Region Association: None |
Ok for the fuel pressure regulator, if I just have the vacuum one in the line alone I'm getting 75psi. I applied vacuum with a mityvac to the port and it didn't change the pressure. So I'm guessing it's not working so for now I'll probably just have the screw one in the line as it's giving me 35psi. Something on the list to fix/replace.
So I ran a wire from the relay to the pump today. And so now I leaning towards the dual relay. I'm not getting any voltage from the fuel pump output at any time. I even jumped 12v to 86a which I believe should pull the coil in for 12V out to fuel pump. Doing this did make the cold start valve click so I know part of it was working. But I'm sure its not lack of fuel causing my issue as previously I jumped the pump out and was maintaining 35psi at all times. So just another item to the list for hopefully once it's running that needs worked out. I'm off to find the dual relay test process I saw somewhere as there may be some other things in there that are keeping it from staying running. |
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