jeeper31

Do you need any special connectors to splice the Bosch O2 sensor to the old wires?

944_S_TYPE

Nope, I would "suggest" that you solder and heat shrink the wires though.....
P.S. Dont forget to slide the heat shrink on the wire before you solder it....

jeeper31

I read that you are not supposed to solder it. I read it t needs to get air through the connection. Doesn't mattter though I can't get it out of the exhaust pipe.

L8 APEKS

Try removing it while it's hot, so the metal has a chance to expand a little. Using the correct tool (22mm or 7/8" crow's foot/O2 wrench) will make it easier.

As for the splice, use bullet connectors and heat shrink tubing. I just did it today, it took me about 25 mins start to finish.

Tb311

I just did this recently and bought the kit from paragon and it had complete instructions and the POSI locks that you use to crimp them together. BTW if you look at the stock O2 sensor wire about and few inches from the connector you can see that there is a hole in the black wire where the air is supposed to go.

dan_c

I used mini wire nuts...gonna inspect them when I get my cat. pipe welded...I couldn't imagine soldering under my car on jack stands...maybe with a micro torch and another pair of hands...

anyone every buy that TV product soldering pen battery operated ...it supposed to cool and heat in seconds...

NZ951

Given it measures on voltage, wouldnt any splicing influence the voltage the DME reads?

testarossa_td

Here is my two cents with picts...
O2 Sensor replacement

garthfan

The "Cold Heat". Yep, got it for Christmas. Works great on anything smaller than a calculator circuit-board. Other than that, forget about it. I do a lot of electrical repairs at work and I had hoped this would save me a lot of time...but, nope. I stick with my thirty-year-old industrial soldering gun. Still works like the day it was new.

Jeremy

Techno Duck

jeeper, if the O2 sensor you bought dosent have the posilock connectors already, go out and buy them. Makes things way easier, also they can withstand the heat of the engine and exhaust. Im pretty sure they sell them at Walmart.

jeeper31

Just this second made some calls looking for them. NObody has the gray high temp ones.

RMills944

Soldering may change the resistance. I just twisted the wire up good and used the heatshrink that came with the new Bosch unit and it's worked fine ever since.

jeeper31

It doesn't matter that I got good wire connectors because....I HAVE STRIPPED THE O2 SENSOR!!!!!!!!!!!

Now don't know what I am going to do. Any advice now?

Should have ridden my bike instead. AT least then I would be posting on the Rennlist Group Fitness thread!

BruceWard

I changed mine last weekend using the Bosch kit including the posi-locks and a plastic holder for four posi-locks.

The kit is easy to use, and in my opinion worth the $50 price tag instead of $20 for the bare sensor. The posi-locks and holder are reusable.