Originally posted by Ray:
Simple circuits..

a cap and a resistor, IIRC? two components on a small breadboard (the square kind made for an IC chip is perfect for two of them)

toss the components on there and solder them in, wrap in heat-shrink and you are done.

the schematic is on here, if you look for how to make them


EDIT: looking at the schematic I have saved and its:

a 1MEGA Ohm resistor (1/4 or 1/2 W) and a 1 microfarad capacitor.

The resistor is soldered in series with the grey wire (between the O2 sensor and the connector that plugs in to the car)

the cap is soldered in parallel with the grey wire and black wire) on the connector side of the circuit, at the same location, between the sensor and the connector.



You really don't even need the board, just solder in the components and electrically isolate them with some RTV or sup'm. Once dry wrap them up in a shrink wrap thingy. Real neat package just like from Pony Express.

Another method used with some success is to mount the O2s in a pair of tall spark plug anti-foulers that have been drilled out to accomodate the sensor. No electrical work.

Must be that jumbly-wumbly thing happening again.