I installed 2 new o2 sensors bank 1 and bank 2 both pre cat. i had it read previously by a handheld which said Bank 1 and bankk 2 o2 sensors were bad. Afer I installed the semsors I disconnected the battery then after reconnecting after a minute the vehicle was running very rough and stumbling. I was not able to drive the car. I then put back in the old sensors to alleviate this problem but it still ran like crap. I dont know what could be wrong? Besides reinstalling the new o2 sensor what could I do? Need help bad! The car is a Lexus is 300 2001

Asked by tuck107 May 20, 2007 at 04:13 PM

Question type: Maintenance & Repair

I installed 2 new o2 sensors bank 1 and bank 2 both pre cat. i had it read previously by a handheld which said Bank 1 and bankk 2 o2 sensors were bad. Afer I installed the semsors I disconnected the battery then after reconnecting after a minute the vehicle was running very rough and stumbling. I was not able to drive the car. I then put back in the old sensors to alleviate this problem but it still ran like crap. I dont know what could be wrong? Besides reinstalling the new o2 sensor what could I do? Need help bad!

1,315

boyblue84 answered 16 years ago

you may have to have the computer reset even though you unplugged the battery

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I installed 2 new o2 sensors bank 1 and bank 2 both pre cat. i had it read previously by a handheld which said Bank 1 and bankk 2 o2 sensors were bad. Afer I installed the semsors I disconnected the battery then after reconnecting after a minute the vehicle was running very rough and stumbling. I was not able to drive the car. I then put back in the old sensors to alleviate this problem but it still ran like crap. I dont know what could be wrong? Besides reinstalling the new o2 sensor what could I do? Need help bad! The car is a Lexus is 300 2001 1 Answer

I installed 2 new o2 sensors bank 1 and bank 2 both pre cat. i had it read previously by a handheld which said Bank 1 and bankk 2 o2 sensors were bad. Afer I installed the semsors I disconnected the...

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i have a 95 lexus ls400. it passed emissions but the engine light was still on. I changed 2 of the oxygen sensors and the light went off initially then came back on after 50 miles. WHATS NEXT!? 2 Answers

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