Greetings all, I am about to install a autometer cobalt narrow band A/F gauge on my car. does anybody know if it is better to tap the purple/green wire on the first pin on the pcm, or the o2 sensor before the catalytic converter. any help would be great. please let me know the pro's and con's to each.thanks for any info in advance.

john

 

bump

 

Sorry dude, wondering myself.... I may find out in a few weeks but that doesn't help you now.