Is there a cheap do-it-yourself mod for the 02 simms? I'm running long tubes no cats and want to save the 90 bucks if possible. The fan mod switch was about $90 and I only spent $20 using the free-mod version, was hoping to do the same here.

 

Try this about half way down http://web.camaross.com/forums/showt...hreadid=107509

 

They can also be programmed out. I've got a "saver" package that includes more items besides this one... check out my page if you're interested.

 

sheesh 2 wires making continuity, seems like it would be just another resistor mod like the "skip-shift" mod????????? yes? no? maybe?

 

The pcm looks for a variation in voltage from the o2 sensor. A resistor would only show a fixed voltage to the pcm.