Racenut
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You need to check spark! If the plug is wet with clean gas, then you know that the injectors are working.
Get something like this:
http://www.sears.com/shc/s/p_10153_...21x00003a&ci_src=14110944&ci_sku=00914130000P
Pull a coil out and hook the tool up to it, then plug a regular sparkplug into the end of it and set it on the valve cover for a ground ( or a test lead with aligator clips one to the bottom of the plug and another to a good ground ) DO NOT PULL THE PLUG FROM THE CYLINDAR WHILE DOING THIS then start the truck and see if the tester light pulses. If the tester does light up and pulse, then you know you have spark on that cylindar and if not then you do not have spark. Repeat on all of the passanger side cylindars.
BTW bad o2's will not cut out one bank. The only thing the o2's will do is tell the computer to give more gas or less gas ( injector pulse ) depending on the air/fuel ratio.
Get something like this:
http://www.sears.com/shc/s/p_10153_...21x00003a&ci_src=14110944&ci_sku=00914130000P
Pull a coil out and hook the tool up to it, then plug a regular sparkplug into the end of it and set it on the valve cover for a ground ( or a test lead with aligator clips one to the bottom of the plug and another to a good ground ) DO NOT PULL THE PLUG FROM THE CYLINDAR WHILE DOING THIS then start the truck and see if the tester light pulses. If the tester does light up and pulse, then you know you have spark on that cylindar and if not then you do not have spark. Repeat on all of the passanger side cylindars.
BTW bad o2's will not cut out one bank. The only thing the o2's will do is tell the computer to give more gas or less gas ( injector pulse ) depending on the air/fuel ratio.