good on you for teaching some people that are not aware of that PTU repair for miss fires etc. but your soldering skills that you said you are not good, it's shocking infact. lol. sorry im a 30 yrs in the trade of being a motorcycle electrician building and repairing bike harnesses and wiring looms, plus custom wiring jobs etc. this may help you a bit to keep the joints slim as possible and neat, when making a none bullet crimped connections buy twisting just stripped wires together and soldering, try stripping the insulation at least twice as long as you did, keeping them flat not twisted yet, then cross them over in the middle of each wire and twirl them around each other in like little coil springs going up the wire on each side. the trick is in stripping the longer strands of the copper wire the joint is very stable while letting go of it waiting to be soldered. also you add the solder to the hot iron tip first so it will penetrate heat into the copper much faster when you tough it to the wire and move the tip back and forwards along the bottom of the wire as you add the solder it's all done very quickly so you don't end up with a blob in one spot by holding the tip on top if you know what i mean. plus your heat shrink tubing will slip over much better and really it should be double heat shrinked over joints because your not staggering the joints you are doing all of them side by side which is not the best way to do it as i can rub through one layer of heat shrink. in saying all this it's all about practice makes perfect in the end. easy for me to say.

Great content, I used to solder most electrical wire jobs. However Ive been using Solder Stick they are cheap and makes the jobs faster.

Great video, i like to see you learn as you go. your videos are very educational. i still havent done this to my harness yet, (been busy with car audio stuff) but i feel confident to do it now from watching this video. It would of been interesting to see a before and after continuity test on those connections.

I prefer the lineman’s splice for solder connections. Check it out.

good video. thanks for sharing.

great vid Caden thanks!

Yoooo! Hey Caden thanks a ton for uploading this. Working on a intermittent mis on #5. It is so weird. #5 doesnt start missing until the car warms up. I checked my ptu and crank angle sensor connections (no corrosion!) I'm thinking I have to replace the injector. (It has new coil pack & spark plug).

so i did the power balance test. injectors are good. i replaced the coil pack from a good cylinder into the bad one and it’s still not bogging. would deleting the sub harness help? should i do it regardless? i’m hoping its just my ptu connectors are dirty because they are covered with dirt and grime. i haven’t check the spark plugs itself but i’m as lost as one can be

Does that new style connector come from somewhere idk how to ask or explain sorry! ( how can I get one )

so the recall by nissan was to what, upgrade to the newer PTU unit via a “sub harness”? i don’t have the sub-harness and I have the early PTU unit. i also do have some very green nasty corroded pins though. so would i need to replace one of the PTU plugs instead?