Chevy Silverado and GMC Sierra Forum banner
1 - 2 of 2 Posts

· Registered
Joined
·
28 Posts
Discussion Starter · #1 · (Edited)
The truck is a 2000 Silverado 2500 6Lwith 129,000 miles. It doesn’t seem to have the mpg or power on accel it dead when I first got it three years ago. Fuel regulator, spark plugs and spark plug wires have been replaced but I have not touched anything else other than standard maintenance.
Wheel Tire Automotive parking light Car Sky


I am getting intermittent codes for the following:

History:
P0140-stop lamp switch circuit
P0141-oxygen sensor heater Bank 1 sensor 2
P0157-Oxygen sensor circuit low-voltage bank 2 sensor 2
P0158-Oxygen sensor circuit high-voltage bank 2 sensor 2
P0160-Oxygen Sensor circuit, no activity detected bank 2 sensor 2
P0161-oxygen sensor heater circuit, bank 2 sensor 2
P0463-Fuel level sensor A circuit high input

Intermittent:
P0140-Oxygen sensor circuit No activity detected bank 1 sensor 2

Confirmed:
P0140-Oxygen sensor heater Bank 1 sensor 2
P0157-Oxygen sensor circuit low-voltage bank 2 sensor 2
P0158-Oxygen sensor circuit high-voltage bank 2 sensor 2
P0160-Oxygen Sensor circuit, no activity detected bank 2 sensor 2
P0161-oxygen sensor heater circuit, bank 2 sensor 2

What I have done-
I checked the fuses- all looks good there. I bought 4 new GM O2 sensors which will be here Wednesday. I plan on checking the wiring to them today.
Anything else I should focus on? Maybe Bad cats?
 

· Registered
Joined
·
28 Posts
Discussion Starter · #5 ·
After you install the O2 sensors, see what comes up.

As an aside. I didn't know there were OEM wheels like that in the 8 lug pattern (6 lug is very common in that style). Those look awesome. I will have to keep an eye out for used set.
When I went to 32” tires, I didn't want to keep my 16” stock rims. I found a set of (4) 2007 GMC Sierra 2500 rims for $200. Now its hard to find a 5th to use as a spare for under $200.
 
1 - 2 of 2 Posts
Top