Question about 1999 Chevrolet Silverado 1500

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02 sensor I replaced the o2 sensor on my truck,but the check engine light will not go out. I reset the cpu and it is still on.

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Does ur vehical have one or more codes and or 02 sensors

Posted on Feb 09, 2009

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96saab 900s check engine light on code p1115 replaced rear 02 sensor then replaced front o2 sensor check engine light came back on.


you will also need to check the wires coming off both o2 sensors and also sometimes the main CPU gets fried always sending those codes

Sep 24, 2014 | 1996 Saab 900

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Check engine light back on after replacing o2 sensor


I called Kia about my check engine light and I told them my mechanic
read the computer and it says 02 sensor. She told me Kia does not sell out there codes to the computer in our cars and that I would have to take it to a Kia repair shop to get the correct reading form the computer

Feb 09, 2013 | 1996 Kia Sportage

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Cant get check engine light off .. fix one thing then other stuff turns it on. Now back to original code for o2


no not the computer when you get codes like that its something else first check your ground straps on the car and your battery make sure your connection are clean then reset you computer and see if that fixed it .

Apr 25, 2012 | 2002 Ford SVT Focus

1 Answer

The engine light stays on, it has an 02 sensor. It may need a new cadillac converter and cv joint.


check engine light on when tested it says bad o2 sensor did you replace 02 sensor it takes driveing it so many miles before light will go off give it couple days you dont need cadillac converter check engine light will go off cv joint they click as you turn dont let a mechanic sell you something you dont need its very rare for cadillac converters to go bad its common for o2 sensors to go bad like yours did but when 02 sensors are replaced it takes driveing it for awhile before it resets itself you also have more then one 02 sensor was then wrong one replaced they screw into your exaust manifold

Dec 13, 2010 | 2003 Nissan Altima

2 Answers

Check engine light. code po141 codepo122


po141, may be a bad o2 sensor, rear sensor after converter. the po 141 is low voltage to tps, try replacing the oyxgen sensor first and then reset the codes and drive if the po141 comes back then replace the tps,

Apr 15, 2010 | 1998 Chevrolet S-10 Pickup

1 Answer

Reset ems (check engine light) on ford expedition


Try to remove positive baterry terminal for 20 minutes and install it nack. That will reset your ECU and it will run little rought tilll learn new change in 02 sensor.

Feb 19, 2010 | 2000 Ford Expedition

1 Answer

Need to change O2 sensor check engine light wont go off


Did you change the 02 sensor? The back one after the converter? If so, stop by a dealer, it may need to be reset.The back 02 is the one that trips the light. Keep that in mind.

Nov 09, 2009 | 2003 Toyota Corolla

1 Answer

Check engine light and cruise lights came on simultaneously.


Sound like the O2's heater circuit may not be working, that will set a code. I am not a big fan of univeral O2's, too many problems with bad connections and the check engine lights coming back on. You may need to use a OEM type sensor to keep the light off.

Jan 29, 2009 | 2006 Subaru Legacy

1 Answer

1999 galant o2 sensor


have you had the car scanned for codes? the light could be on for something other than the o2 sensor

Oct 15, 2008 | 1993 Mitsubishi Galant

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