Code p0031 p0037 need see a video how to fix

Where did you get codes? Whomever ran test should have told you.????
All vehicles in North America use OBD 2 codes, look on line you can find them Took about 10 seconds.
https://www.troublecodes.net/pcodes/p0031/
https://www.obd-codes.com/p0031
https://www.obd-codes.com/p0037

Old question that must have been resurrected by spam, but I fixed the dreadful written English tossed in some CAPS and a few SPACES! It looks pretty now.

All questions need full 'year make model', rather than 'year make, engine size'.

Anyway, there is this thing called Google. It knows everything. Here is your first code. Just copy and paste the others in and press enter.

https://www.google.com/search?q=2002+Dodge+5.2.+What+are+the+codes+P0031

What Does P0031 Mean?

The P0031 code is a result of the bank 1 HO2S1 (pre catalytic converter heated oxygen sensor) heating element having low voltage. Heated O2 sensors have a seperate heater inside the sensor to get them to operating temperature quickly.Oct 1, 2018

OBD2 Codes - P0031 - Meaning, Causes, Symptoms, & Fixes

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http://www.autocodes.com/popular_codes_make.php?make=DODGE, try to look up the codes under the autocodes.com, this site can help you find the code and give you help to fix it, also look for the ground wires and they are grounded to the engine and body

I am getting two codes on my 2004 Volvo S-40 I. P0031 and P0037.
I have also changed both oxygen sensors with OME sensors. What do I look for next

code P0031 - O2 B1 S1 heater circuit low. code P0037 - O2 B1 S2 heater circuit low.

What year is the vehicle ? Codes P0031 37

Hi:
You are having trouble with your oxygen sensors, and one or more need changed. Here is a link to some help:
http://www.helpforcars.net/obd_codes/codes.php?code=P0037

these codes are o2 sensor related need to get dealership to check out

Have you cleared the codes at least once?
The new o2 sensors should have removed all those codes.The sensor closest to the engine b1s1 may be defective.Check wiring and plug to that one closely.