what does this mean?
Thread Starter
Melting Slicks
Joined: Aug 2007
Posts: 2,583
Likes: 415
From: Erwin, NC
what does this mean?
P0137 Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 1 Sensor 2
P0157 Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 2 Sensor 2
I get these 2 codes anytime i am accelerating over 100 mph.
right around 115 at WOT, the car starts to bog and won't accelerate anymore.
if i let up to half throttle, it'll get up to 120ish then stop accelerating again.
P0157 Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 2 Sensor 2
I get these 2 codes anytime i am accelerating over 100 mph.
right around 115 at WOT, the car starts to bog and won't accelerate anymore.
if i let up to half throttle, it'll get up to 120ish then stop accelerating again.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
The grounds on the DRIVERS side of the block and the ground stud directly below the master cylinder are invloved in the O2 sensor heater circuits. Before you spend tons of cash,,make sure that the ground connections are in good shape.
BC
BC
Racer
Joined: Mar 2003
Posts: 440
Likes: 7
From: Willow Park Texas
Sensor 2 is the rear O2 sensor. It is only used to tell if the cats are working correctly. This would throw a code, but it would not cause your car to bog down. Since you are having the problem on both sensors, I would think you had a common problem between them. I do not beleive that it would be a ground as both sensor wires go back to the PCM. The heater is connected back to a gournd on the chassis. At high speed, the bogging down could be caused be a lack of fuel or it could be a plugged cat. The plugged cat is what it was on my sons car. If that is it, I would think you could just put it in a lower gear and get the revs up to the same amount and see the problem. You can take it to a muffler shop and they can put in a pressure gage before the cat to see if that is it or not. That might also explain the codes on the rear O2 sensors since they would be behind a plugged cat. Odd that it would be on both at the same time though.
Reb
Reb
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Racer
Joined: Mar 2003
Posts: 440
Likes: 7
From: Willow Park Texas
On my sons car,we would put it in second and take it to about 4000 rpm and keep it there awhile. It took about 1 minute for the back pressure to build up before the engine would bog down.
My sons car would not throw any codes.
Reb
My sons car would not throw any codes.
Reb
Thread Starter
Melting Slicks
Joined: Aug 2007
Posts: 2,583
Likes: 415
From: Erwin, NC
Team Owner
Joined: Jul 2006
Posts: 97,155
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From: Calgary, AB. There's a reason why white was the only color offered on every year Corvette. Proud Canadian German Jamaican!
St. Jude Donor '09, '12-'13-'14-'15-'16-'17
Means time to get new O2 sensors.
