matching wires to dist/camshaft sensor/etc

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weeconan9
Posts: 6
Joined: Fri Jul 05, 2019 1:55 pm
Car: 2000 Infiniti g20

Post

so I had to do some rewiring of maf sensor,intake air,camshaft and crankshaft sensors and in me rushing I got wires mixed up. I need the order and color of the wires that go to distributor on a 2000 infinit g20. ive got it mostly hooked back up but when I crank it, it just cranks weakly. the fuel pump kicks on when key turned but injectcors are not pulsing and I got short to ground or short to power somewhere.


amc49
Posts: 1183
Joined: Mon Jun 19, 2017 7:24 pm
Car: '11 Nissan Versa
'17 Nissan Altima

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Why you always leave a short amount of original wire present as a color key to keep from screwing up.

I had a Focus that got in accident and then the wonderful Fort Worth Fire Dept, proceeded to cut every mass of wires under the hood they could even though all airbags had already triggered off. To stop a short from flaming the car.

I got skills at wiring after I had to reconnect probably a hundred different wires to have car back up and running at the first crank and zero trouble since the wreck in '08, car still used today. The whole neighborhood heard me cussing that week though.

amc49
Posts: 1183
Joined: Mon Jun 19, 2017 7:24 pm
Car: '11 Nissan Versa
'17 Nissan Altima

Post

Go to top of page and pick service manuals and enter your car and download section 'EC' for engine control. The color codes are in it but you'll have to search to find out where, I found them in about 30 seconds.

You messed up if you cut the cam sensor wires, two of them are shielded to stop electrical interference from other wires running right next to them, that shielding needs to be in place or you likely will have trouble.

You may have messed up even worse if you crossed 12 volt power to put it into the very low power circuits there, that would likely blow the ECM out.

You often get only one shot to get stuff like that right, not doing so can greatly complicate your getting car back running. The cars now do not tolerate sloppy electrical work at all.

weeconan9
Posts: 6
Joined: Fri Jul 05, 2019 1:55 pm
Car: 2000 Infiniti g20

Post

Ive been researching for 4 days online and the service manuels on this website but I don't understand the wire diagrams. this harness connector has 6 pins so 6 wires, ive narrowed it down to which 6 wires go to it but don't know which order. there is 2 black 1 blue 1 white 1 white/ black stripe 1 black/white sripe Ive pretty much figured out which wires are ground which are the 12volt the 5volt and just 1volt reference and signal wires but am messing things up trying again and again mixing up the order of the wires. and what would cutting the cams shielded wire do? because I spliced a shielded wire already and things were fine but I cant remember how to splice the wire again its like a 14 g wire with a insulated 16 g wire and loose wire inside it, the loose wire is grounded

weeconan9
Posts: 6
Joined: Fri Jul 05, 2019 1:55 pm
Car: 2000 Infiniti g20

Post

Ive been researching for 4 days online and the service manuels on this website but I don't understand the wire diagrams. this harness connector has 6 pins so 6 wires, ive narrowed it down to which 6 wires go to it but don't know which order. there is 2 black 1 blue 1 white 1 white/ black stripe 1 black/white sripe Ive pretty much figured out which wires are ground which are the 12volt the 5volt and just 1volt reference and signal wires but am messing things up trying again and again mixing up the order of the wires. and what would cutting the cams shielded wire do? because I spliced a shielded wire already and things were fine but I cant remember how to splice the wire again its like a 14 g wire with a insulated 16 g wire and loose wire inside it, the loose wire is groundedImagehttps://photos.app.goo.gl/qe8DwL5Sd3LPdQkJ9

weeconan9
Posts: 6
Joined: Fri Jul 05, 2019 1:55 pm
Car: 2000 Infiniti g20

Post

Ive been researching for 4 days online and the service manuels on this website but I don't understand the wire diagrams. this harness connector has 6 pins so 6 wires, ive narrowed it down to which 6 wires go to it but don't know which order. there is 2 black 1 blue 1 white 1 white/ black stripe 1 black/white sripe Ive pretty much figured out which wires are ground which are the 12volt the 5volt and just 1volt reference and signal wires but am messing things up trying again and again mixing up the order of the wires. and what would cutting the cams shielded wire do? because I spliced a shielded wire already and things were fine but I cant remember how to splice the wire again its like a 14 g wire with a insulated 16 g wire and loose wire inside it, the loose wire is groundedImagehttps://photos.app.goo.gl/qe8DwL5Sd3LPdQkJ9

amc49
Posts: 1183
Joined: Mon Jun 19, 2017 7:24 pm
Car: '11 Nissan Versa
'17 Nissan Altima

Post

Can't tell you the exact order of wires as you have destroyed that. You were supposed to write them down or draw a pic or even use your camera.

You HAVE to understand the diagrams now, you removed any other way. You have to test the inner ends of leads to tell where they go to accurately wire it back up, providing you haven't already shorted the computer out with your muddling around there.

'...but am messing things up trying again and again mixing up the order of the wires.'

Not trying to be mean here but you need to find somebody with the skills to do it, you are not competent enough.

weeconan9
Posts: 6
Joined: Fri Jul 05, 2019 1:55 pm
Car: 2000 Infiniti g20

Post

I know this is too much for me im getting frustrated

amc49
Posts: 1183
Joined: Mon Jun 19, 2017 7:24 pm
Car: '11 Nissan Versa
'17 Nissan Altima

Post

You may as well get over the frustration part as it only makes things worse. Not trying to be mean there at all but it is what it is. I went back and looked at the electrical schematics there and I STRONGLY recommend you find someone able to sort that out, and likely they are going to tell you to get a whole new distributor at whopping cost. If you have mis-connected the wrong wires I can just about guarantee the ECM may have damage too as some of the wires carry low volt and a full 12 volts there will wreck whatever the wires attach too. Meaning a new distributor is only the beginning of cost. The ignition transistor and cam sensor there are complicated enough it will take a very good tech to carefully sort out wires and hard parts to not damage them any further than they are already. Your picced connector there is garbage now if you have moved wires around and likely none of them have good enough contact to work even in the right spot now. It would take somebody to post a pic of the exact same connector to help and even then if shorted now at the ECM that won't help either. Mixing connections like that up are often the death of a car, the electronics will not accept that at all.

Best bet will be to look around for some kind of a replacement pigtail for that, I found a few but you'll have to verify them as the wire colors are different.

weeconan9
Posts: 6
Joined: Fri Jul 05, 2019 1:55 pm
Car: 2000 Infiniti g20

Post

Imagehttps://photos.app.goo.gl/c1Y4z6AKFCWV81QR7 this is what it looked like before it got mixed up when it still ran

amc49
Posts: 1183
Joined: Mon Jun 19, 2017 7:24 pm
Car: '11 Nissan Versa
'17 Nissan Altima

Post

If you knew that then why are you asking for the wire positions???? You now appear to be bullsh-tting yourself with what is now worthless to you. And even if, if the connections are not solid the car still won't run, that pic besides being worthless (to me anyway) solves nothing at all. Your first pic now may indicate the problem, someone who cannot wire a connector.

Can't help you with that at all. You are lacking skills there.

Replacement pigtail.


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