megalomaniac001

Anyone know the resistance value of the cat o2 sensor?

White Smoke

The resistance is not going to really tell you anything. What is the problem you are having and or what code (P code) are you throwing?

TS tips can be found on page 11-58 in the FSM

If you are looking at the sensor connector with the pins facing you, and the clip at the top....
Top Left- (+) sensor
Top Right- (-) sensor
Bottom Left- (+) heater
Bottome Right- (-) heater

megalomaniac001

the computer is only looking for a certain resistance. so im thinking if i can duplicate the sensor and just have the computer "think" their is a properly working o2 then i can get rid of this code. if not...the spark plug method i will go.

Black S2K

sparkplug defouler FTW!!!!

White Smoke

The ECU looks for the sensors output voltage. It does not just read it's resistance. Resistance does come into play (as in most all electrical circuits), but you can't just pop a resistor in there and fool the ECU. You would need an 02 simulator with is a simple oscillating circuit that uses a very common 555 timer IC. You can buy them online for around 50$ or you can build one yourself for probably like 10$ if you are electronically inclined.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Black S2K &raquo;</TD></TR><TR><TD CLASS="quote">sparkplug defouler FTW!!!!</TD></TR></TABLE>

This is the much more common and cheaper way...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by S@nt0s &raquo;</TD></TR><TR><TD CLASS="quote">well i hope others can pitch in some good info and stop a lot of the filling the board with repeats....

O2 Cell Fix
this installation will remove CEL (check engine light) that is caused when you install a test pipe (no cat) or high flow cat.


when this light comes on from your install of a new exhaust , be aware that this has no effect on the performance of your car. its just a stupid reminder that the o2 (oxygen) sensor is finding a problem caused when you removed or did something to the stock catalytic converter.


notes before starting
- you might have space for only 1 spark plug anti-fouler, sometimes using 1 will work / sometimes not
- having an electric drill helps out tremendously , those battery operated ones dont have that much power; they will still work but will be a pain
- this may still not solve your problem of the light; a small amount of people that try this 'quick fix' still cant get the light to go off


STEP 1
-purchase 2 spark plug anti foulers at your local auto parts store
-18 mm size
-made by HELP brand / part number 42002
-HELP has also another part number 42009 and are shorter in length than the 42002, i have heard they worked , but i am not 100 percent



STEP 2
-disconnect the negative terminal on your battery. this will reset your ecu
-take one of the anti foulers and drill out its center using a 1/2 bit ,
-this will increase its hole size and allow your stock o2 sensor to fit



STEP 3
-screw the drilled spark plug anti-fouler on top of the original
-be sure to use some kind of anti-seize on the treads. in case you need to remove your fix with ease





STEP 4
-unscrew your stock o2 sensor and place your cel / ses fix in
-use anti seize on the threads
-clean your cell (by wiping it off with a paper towel)







STEP 5
-reinstall your o2 sensor
-use anti seize on the threads



STEP 6
-reconnect your battery (your ecu is reset)
-you have just solved the problem of the 'damn light keeps coming on'

ps. its cost me 8 dollars for the pack of 2 spark plug anti-foulers</TD></TR></TABLE>