Resolved 2G HELP - Soldering new Injector Pigtails

[Laporte18]

Needing some help, going to be soldering in to fuel injector plug pigtails. Never done anything like this before but want to make sure I get it right the first time. Which side of the plug is the power and which is the neutral from the original plugs? I’m assuming the yellow wire labeled “A” is my power and grey “B” is my neutral on the pigtail

1st time poster but many more to come!

You must be logged in to view this image or video.

You must be logged in to view this image or video.

 

[Stapl3]

They are not directional.

 

[Laporte18]

They are not directional.

When you say they are not directional, are you saying it doesn’t matter which side gets soldered from the factory wiring to pigtail?

My “A” and “B” side reference is just what’s stamped on the head of pigtail connector, figured it was irrelevant

 

[93xsg]

I couldn't tell you about which wire goes where.
Have you considered depinning and repinning into the new connector?

That way you don't have to cut and splice into wires. Just a thought.

I would say there's only 2 wires. Look at the way the connectors attach to your injector.

Make sure they stay in the same spot and you are good to go.

For example. On the current connector, wire color (x) is on the left with the connector plugged in. With the new connector, that same wire color (x) should be in the same position with it plugged in.

Basically so that the same wire from your car, ends up in the same place in the injector at the end of the day.

Simple Hope that helps

In reality, you don't need to know what each wire does. Just ensure with 100% clarity that each wire ends up on the same spot on your injectors and you'll be fine. If you really wanted to know, a digital volt tester could tell you. Id assume with key on, one gets a voltage signal, and with cranking/running (when injector fires) one of the wires receives a ground signal to complete the circuit

 

[19Eclipse90]

It doesn’t matter which wire goes to which position.

If you want to match the original, however, refer to posts 3-6 in the 2G Engine Bay Electrical Connectors thread and note the wire colors for each connector. That information can also be found on the electrical diagram:

You must be logged in to view this image or video.

 

[jdxnc]

As stated by the others, injectors are simply an electromagnet, they don't care which leg is positive or negative.

That being said, I'd highly suggest a proper crimp over solder. Solder has a high risk of making the wire brittle and more prone to breakage.

You must be logged in to view this image or video.

 

[Laporte18]

I appreciate all the replies, was able to get them soldered in today, thank you everyone!

 

[chrysler kid]

As mentioned earlier be careful with soldier as it can increase the resistance in the wire and prevent full electrical continuity. The soldier should only serve as extra adhesion to keep the wires together, and not the primary contact for the wires

 

[1990TSIAWDTALON]

Jason is right, that solder joints are brittle but they DO NOT PREVENT CONDUCTIVITY or increase resistance.
My other (cheaper) hobby, for the last 40 years, has been radio equipment repair and modification. Solder will make the best electrical connection at the cost of being brittle and under the hood of a car. Make sure it is rosin core solder for elctrical things, NOT ACID CORE.The movement of the car components will test the connection, but my injector plugs are soldered in, like the post is talking about, with heat shrink tubing on every wire.
@jdxnc where do you get your butt connectors and what crimping tool do you use? It looks very solid!