RylAssassin

Im in the process of removing my turbo and the o2 sensor wire just fell off so now i have to soder on or somthing. My question is that when i looked at the wire it looks like it was prevously sodered on before and i was thinking this was the reason it fell off. The wire is comming from the engine and is directly above the turbo so its being subjected to really high temps, so what would be the best way yo reconnect the o2 sensor wire??

eljefe62

wrap it in high-temp wire wrap
or extend it and run it to the driver's side before going down to exh manifold

TristanTII

the O2 wire is a shielded wire (I believe that's the correct name) it has a small wire wrap around it, that's grounded. This is to protect it from EM interference or something.

The point is, if you solder on a new wire, and you solder in the ground, the O2 sensor won't work. And it's a pain in the *** to get that little wire out of the way, even if you can find it.

I have the same problem, and plan to just run another wire from the ECU. The last 6 inches or so before the ECU aren't wrapped, so you can cut in there.

eViLRotor

iTrader: (2)

On the topic of wire protection, these are very cool...

http://www.designengineering.com/cool_tube.html

RylAssassin

Ok so you guys are saying there is no real way to reconnect the o2 sensor wire? And if you did you say that it would not funtion properly? Cuz i can tell that the previous owner did this cuz i can see where it was soldered. If irun a new wire from the ecu then wht kind of wire does the o2 sensor use?? Thanks and great link by the way

RETed

Wiring close to exhaust should always be crimped.&nbsp A solder connection, although better in most cases, is not a good thing under high heat environments.&nbsp This is why most O2 sensors with pigtail bare ends come with crimps.&nbsp MAKE SURE YOU STRIP THE OUTSIDE SHIELD WIRE AWAY FROM THE CENTER WIRE - if you connect them both with a crimp, you'll kill the O2 and possibly the ECU!


-Ted

RylAssassin

man this is getting complicated, I dont know if the wire going to the o2 sensor is shielded. I dont think its the stock wire cuz i can see where it was soldered so im thinking they used just regular wire to connect it to the o2 sensor. If i have to get new wire for the o2 sensor what is it called and where can i get some. As far as the temps around the cable im going to try to find some high temp wire protector at home depot or check out taht place that person posted before, that cool tube stuff. Thanks for the help

RETed

The stock wire is supposed to be shielded.&nbsp If the wire was spliced somewhere, then just use that wire - don't worry about the shielding.&nbsp Use whatever stranded wire you have laying around - use crimps!


-Ted

RylAssassin

ok cool thanks TED

dr0x

You can buy heat resistant silicone tape to cover the wire you are using with if you want. Not really worth it IMHO. It gets hard and crusty and cracks, so you spend 20 cents and crimp a new one on