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Engine light still on after replacing oxygen sensor

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Hey JEFF,

Can you please start a new question.

Best, Ken
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Thursday, November 17th, 2016 AT 7:58 AM
Tiny
F12ANK
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After you cleared your codes after you replaced your sensor. You have to drive it a a certain amount of miles. Your ECM (electronic control module) has to basically do a reset and while your driving it will retest and check to makes sure everything is okay with your car. With that being said. If you clear your codes with out driving for long enough time to give your car a chance to reset and you take it to get it inspected, the system will show as though your codes are still showing which will cause the fail. Just drive it for a while. Fifty or sixty miles depending on your car and take it to AutoZone or O'Riellys and have them check it to make sure no codes show before you get it inspected. Hoped that helped and explained. I know it is an old post but there you go anyways. Good luck.
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Saturday, May 5th, 2018 AT 9:38 PM
Tiny
STEVE W.
  • MECHANIC
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It sounds like he replaced the sensor but failed because the monitors were incomplete which would be normal if there was an O2 code as it will not run all of the monitors if a code for a monitored system is set (even ones that do not light the CEL can block the monitor tests).
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Sunday, May 6th, 2018 AT 7:11 AM
Tiny
MUHAMMAD SAQIB
  • MEMBER
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I have problem with oxygen sensor code p0130. I have replaced o2 sensor but after 12 km check engine light comes again. Please help me. Did p0130 code can come for air sensor also or anything else.
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Saturday, June 23rd, 2018 AT 6:41 AM
Tiny
KEN L
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I have seen this problem being the computer being bad. Here is the location you will need to get the new one programmed at a shop. It should cost about $130.00.

Check out the diagrams (below). Please run some tests and get back to us.

Cheers, Ken
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Saturday, June 23rd, 2018 AT 12:26 PM
Tiny
MUHAMMAD SAQIB
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As I said certain time I cleared the code after driving the car but it comes back. My car vibrating when engine gets cool and after few minutes it takse charge and go for a drive. The pick of car is also not like that as it should be.
But fuel consumption is not very low where as I can go on it on 120 speed.
Cloud you please tell can it is faulty due to air sensor? If air sensor where not working code will be appear same p0130 or it will be change?
Thanks
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Saturday, June 23rd, 2018 AT 1:27 PM
Tiny
STEVE W.
  • MECHANIC
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P0130 does not cover just the O2 sensor. It covers the entire circuit for the sensor. 99% of the time the issue is not the sensor but either a bad connector or bad wiring between the sensor and the computer. To repair it means you need to look at all the wiring harness for the sensor, looking for broken wires (they will corrode of inside the insulation or inside the crimped areas on connectors) plus the wires can get close to things like the exhaust pipes or manifold and be melted through or where they are attached to a bracket or bend around a sharp edge. Happens a lot.
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Saturday, June 23rd, 2018 AT 2:05 PM
Tiny
MUHAMMAD SAQIB
  • MEMBER
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Wires have been checked along with voltage. My car does vibration when I start it earlier in the morning or after engine cool down maybe it is happening due to air filter switch may be switch of air filter is not working so it may not allow to o2 sensor to do proper work or my car pick up is weak due to it.
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Sunday, June 24th, 2018 AT 12:33 AM
Tiny
KEN L
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A clogged air filter is not good can you get a new one and retest? That is the first thing is this guide.

https://www.2carpros.com/articles/engine-has-low-power-output

Please let us know what happens.

Cheers, Ken
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Sunday, June 24th, 2018 AT 11:37 AM
Tiny
MUHAMMAD SAQIB
  • MEMBER
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Today I replaced the air sensor and I driven the car after changing air sensor forty km without clearing the engine check light. Now after that I cleared engine check light and drive ten km and came home. Now I do not know it will come again or not tomorrow.
Hope for a good!
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Sunday, June 24th, 2018 AT 1:36 PM
Tiny
MUHAMMAD SAQIB
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No improvement after done all above. Still check light is on.
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Monday, June 25th, 2018 AT 2:58 AM
Tiny
KEN L
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Yes, it sounds like the PCM is bad.
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Monday, June 25th, 2018 AT 10:48 AM
Tiny
MUHAMMAD SAQIB
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How can I set PCM?
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Monday, June 25th, 2018 AT 12:27 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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A shop will need to do it should cost about $130.00.
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Tuesday, June 26th, 2018 AT 10:57 AM
Tiny
MUHAMMAD SAQIB
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Can throttle make problem of vibration of car?
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Tuesday, June 26th, 2018 AT 11:54 AM

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