lilrobo

i am looking for the wiring diagram for sensor 1 banks 1&2 ( manifold only ) i have 4 prong o2 sensors for a 06 5.3 ecm is blue & red plugs , iam tracing out my wiring i have 1 not working dont know which one ,i know there is 12 volts on the pink wire with the key one ,, dont know anything else right now ,, i want to ohms them out to make sure they aren't broken , them i test for power
thanks

1964SS

iTrader: (1)

How do you know you have one not working, but not know which one it is? The ECM will tell you which O2 sensor is having the issue.

Here's a link that could help you out.

http://lt1swap.com/03_5.3-6.0_o2.gif

lilrobo

when i had it dyno, i had 1 not working , so my guy turned them off , i need to have them turned on before i can do any searching ,, i do need a diagram

thanks

lilrobo

all my wires check out with ohms , now i have to wait until i get everything back on,, thats the kicker the guys used is a hour away, they dont match the diagram you posted ??
pass side
color pin
tan 26
ppl 66
pink 19
ground chassis ground

drivers side
pink 19
tan/wht 29
ppl/wht 69
ground chassis ground

1964SS

iTrader: (1)

Strange, Maybe your harness is older then you thought. Here is a link to the general info page. Check out the 01-02 isolate ground diagram near the bottom. Looks like what you are describing.

http://lt1swap.com/vortec_o2_sensors.htm

lilrobo

thsi is what i have
2001-02 4.8/5.3 with case ground sensors