yea, that was my theory on the matter as well...
i know for certain that its not right
but the car runs fine, has lots of power, seems to be ok...
but my guess is that they are not getting enough ohm's and therefore are not supplying enough fuel, making the car run lean, but this is only a theory...
the car has an idle funk... it will idle around 800-900 like it should, then it will build up to about 1200... and then all of the sudden drop back to 750-800 and work its way back up to 1200 or 1300
and it just does it over and over and over again...
so my theory is that the o2 is saying lean, gives it more fuel, bumping the idle, and then it reads not lean, kicks it back down to 800 rpm's and the cycle restarts...
any idea if any of my theories are anywhere near right?