i've replaced the sensor once before, also the catalitic converters have been replaced with magnaflows. any ideas what could be wrong? bank 2 sensor 2 should be passengers side after cat, right?
2006-12-06 15:55:58 · 8 answers · asked by navarro084 1 in Cars & Transportation ➔ Car Makes ➔ Chevrolet
O2 sensor circuit low voltage sensor 2 bank 2 This does not indicate a bad sensor. Do not change a sensor because of a fault code. Low voltage indicates a lean fuel conditon. This could be dirty connector on the sensor or the sensor itself could be dirty. O2 sensors should be replaced when spark plugs are replaced, that is a reasonable interval as they do wear out. It takes a computer scan with a program that can create a graph to test an o2 sensor with engine running. Scan for any pending codes. Bank 2 varies with the vehicle make, sensor 2 is the one after the cat.
2006-12-06 16:29:29 · answer #1 · answered by tronary 7 · 0⤊ 1⤋
Right! You replaced the catalytic converter with a magnaflow, right? This sensor measures the temperature of the exhaust gases, and the computer is programed to a parameter of + or - a certain degree. Meaning; your exhaust gas is now not hot enough to satisfy the computer, and sets a code. A converter heats up hot and makes the exhaust coming out of it hot. If its not hot enough, then you will either have to get the converter back on it or live with the light. I believe the JET company makes an aftermarket sensor for this, and it tricks the computer into thinking it is hot enough, thus keeps the light in check. I'm not sure of the company, but I have seen them somewhere.
Glad I could help. Good Luck!!!
2006-12-10 00:39:08 · answer #2 · answered by Anonymous · 0⤊ 0⤋
99% of the time, it's a faulty 02 Sensor. Low voltage codes usually set when the sensor no longer returns the correct response voltage. b2s2 is the passenger side rear (after the cat) sensor. Aftermarket Catalytic converters have caused this condition too. Have a dealership run diag on it and isolate the cause.
2006-12-07 12:33:51 · answer #3 · answered by lallen 4 · 0⤊ 1⤋
I assume you own a scanner with datastream capabilities. I'd hook the scanner up, go to live data, and monitor the O2 sensors, its pretty easy. This is exactly what you get for free code reads, parts places that make money selling you parts that never fix the problem. Reminds me of autozone. I would stop right now, and get it to a real shop that has professionals working there and get it checked by a pro.
2016-05-23 02:45:32 · answer #4 · answered by ? 4 · 0⤊ 0⤋
did you replace your cat converter with and aftermarket part. If you did that is probably why the code is still setting. a part like that should only be replaced with oe parts. I have seen multiple instances where an aftermarket cat conv was installed and the code would keep setting until a dealer purchased converter is put on in its place.
2006-12-08 05:35:25 · answer #5 · answered by Jerry C 1 · 0⤊ 1⤋
P0157
2017-03-02 07:59:13 · answer #6 · answered by Anonymous · 0⤊ 0⤋
bank 2 is paasengr side -could be bad sensor -low voltage etc -get it hooked up on a scaner
2006-12-06 16:33:53 · answer #7 · answered by michael_stewart32 4 · 0⤊ 1⤋
Correct.
2006-12-09 10:56:15 · answer #8 · answered by George K 6 · 0⤊ 1⤋