im in need of a new o2 for a fast system anyone have any info on a cheaper solution! i bought one from fast it was 330 bucks ouch. ive heard there was a cheaper solution but when i bought my o2 they sent me a calibration disk with it!

 

Yeah apparently you can use one from a honda that has a 5 wire o2. I haven't had to replace my yet, but was told that the 5 wire o2 would work. Check to see if Denso makes one.

 

Not the same. I tried to run a Honda 5 wire and it wouldn't read at all. They are calibrated differently.

 

Yeah, I had to replace my O2 sensor with my fast system. Just needed to installed new software with the new O2 sensor......expensive though!!!! I dont know of any cheaper solutions

 

you cant use the honda one. i tried it before too. they made the calibration disk so you have to buy it from them.

 

How long did your 02 sensor last?

 

i sold the ecu to my friend and its still ticking. since 98-99'. it all depends on the condition of your engine. no coolant or oil in the exhaust and the sensor last a long time. i ran lead gas a bunch of times too.

 

Just go to Honda and get the O2 and what you are going to do is take the chip out of your existing one and plug it back in the new one. Because FAST has serial code chip to calibrate with your computer. Hope that helps.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Avid Racing &raquo;</TD></TR><TR><TD CLASS="quote">Just go to Honda and get the O2 and what you are going to do is take the chip out of your existing one and plug it back in the new one. Because FAST has serial code chip to calibrate with your computer. Hope that helps.</TD></TR></TABLE>


there are no "chips" in the 02 sensors....

please explain ALOT better.

 

Yes there is a chip, where the connecting plug is. There is a white piece, just take some pliers and pull it out. Then install it in the new O2.

 

are you kidding me? the white plastic peice that "protects" the pins from the wiring harness..

 

wow good info guys ill try it!

 

yes the white chip just remove and replace

The disk is basically FAST's way of "protecting" their software/hardware investment... the disk contains the resistance value of the sensor that was paired with it. When loaded, it updates the FAST box to look for a WB with a resistance of the specified value, if they don't match, WB no workie.

The funny thing is that the resistor is there to correct variances in manufacturing that cause different readings (it's a calibration resistor).

Unfortunately, FAST uses that resistance to check that it's a sensor that was bought from them. The only way that it could work with a different sensor would be one that matched the resistance value of the one that came from FAST, or as stated above, switch out the resitors. But I would warn you that switching resistors would change the reading from the sensor, not sure by how much, but it would cause it to be "uncalibrated"

 

i was going to say that, we doit all the time, the honda sensor is cheap

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18bturbo &raquo;</TD></TR><TR><TD CLASS="quote">yes the white chip just remove and replace


</TD></TR></TABLE>

wow...i never noticed that about my o2......

thanks for the info, V

 

I have a brand new 5 wire o2 (honda) does the plugs need to be changed. ill check it out tommorow at the shop? but can anyone post a picture of the chip pulling process? i dont want to mess up a good sensor. but i do have a way to test the calibration by using a another box to see how much ther off by! thanks for all the input sometimes i dont know what i'd do without honda-tech.

 

bump for some pictures! please

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dturbocivic &raquo;</TD></TR><TR><TD CLASS="quote">

wow...i never noticed that about my o2......

thanks for the info, V </TD></TR></TABLE>

Haha, do you feel like an ******* now Dave?

The "chip" is very easy to change. Just like you are removing a pin from any honda plug, pull out the white thing in the plug. Put the white thing in the plug of the new o2. It'll all make sense when you pull the white thing out and see the "chip". Viren is right though, since that's the calibration resistor, the a/f readings will be off. I don't know by how much either.

 

if i remeber correctly you have to purchase a cx o2 which will be a 5 wire o2 that is what you are going to need.the plug on 4 wire is to small and the 5 wire has the space for the chip.

 

VX

 

thanks guys what about the vx it lookd exactly the same!

 

Id like to know more also. I just plugged my friends laptop in tonight and it seems as though my o2 isnt working. Damn, if I have to buy a new one.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">

Haha, do you feel like an ******* now Dave?

The "chip" is very easy to change. Just like you are removing a pin from any honda plug, pull out the white thing in the plug. Put the white thing in the plug of the new o2. It'll all make sense when you pull the white thing out and see the "chip". Viren is right though, since that's the calibration resistor, the a/f readings will be off. I don't know by how much either.</TD></TR></TABLE>

yeah from when i changed mine it is .9 off from the dyno on the second bung

 

thanks again guys im going to try it today and test it against another box and o2 on the dyno today to see how far its off! appriciate all the help especially from the imfamus tony1!

 

Dynojet does the same thing with their wideband sensors. They are the same Bosch LSU4 as used on the VW's but they charge you a lot more for theirs....