i have troubleshot an issue with my 03 ram 1500 5.7 hemi to this code "P0132....O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)". my problem is that i can't find anything taking me to bank1, sensor1. is tis something that i can repair on my own, or does it absolutley have to be done at a shop? I NEED HELP!!! this problem is driving my crazy. olus, if i can fix mine, i'm sure i can help one of my buddies that is having the similar issues. anybody out their, any information would be greatly appreciated.

 

1st sensor going back from the manifold on the drivers side. High voltage is an indicator that there is a lack of oxygen, but it's probably just a bad sensor, given the age of the truck. Replace it and see if the CEL goes away...

 

thanks, i'll give it a shot.

 

Yep Bank 1 always means which ever side cyl number one is.
Sensor 1 is always between the motor and cat converter.

 

'03 trucks only have 2 sensors. You are looking for the pre-cat sensor at the 'Y' pipe. Change it yourself, it is cheap and easy to do. Make sure to use a little anti-sieze on the new sensor.

 

i thought that it was only 2 O2 sensors on this model. the pre- cat and aft- cat. i ad already changed the pre-cat, and the code was a P0420. after it was changed, that's when i got P0132. although it doesn't indicate it, should the aft-cat O2 sensor be changed as well? i tried pulling the battery cable to reset the computer so that when i turn the truck on it could re-cal for the new O2 sensor. anymore help and/or advice would be great.

 

P0420 is a cat efficiency problem.

P0132 is the front sensor.

Don't buy elcheapo sensors (not saying you did). Buy Dodge.

I would change the rear sensor and try it. The cat itself is really expensive.