oldmano2z

code says insufficent switching changed 02 sensor same code pops up. do i need to check the wiring for opens or shorts? i have long tubes and wire extentions. mechanic says unplug the pcm,locate the individual conductors and induce a voltage on each conductor to check for good con ductors. if just testing continuity even one strand of wire will read a good circuit. anyone with help would be highly appriciated . i getting tired of crawling my fat ,old *** under this car... theoldman............