Question about 2005 Toyota Corolla
P0140 - O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2
Possible causes- Faulty Rear Heated Oxygen Sensor Bank 1
- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks
Posted on Dec 08, 2012
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Posted on Jan 02, 2017
SOURCE: 2001 toyota corolla check engine
Mass Air Flow sensor! Just remove your air filter cover. Go to Auto Zone and purchase some solvent. Spray past the air filter and it should correct the problem. If not, replace the Mass air-flow sensor. This is commonly mistaken for an oxygen sensor. Mine did this and I followed these steps and it fixed the light. BTW, the light stayed on for 5 years before I fixed it. Never hurt anything. It's normally something to do with emissions. Dummy lights. :)
Posted on Mar 30, 2009
You have an issue that Toyota knows about; there is a programming problem with the ECM in the vehicle, and Toyota has released a Tech Service Bulletin (TC015-07) to cure your problem.
You probably have a DTC code of P-2716...The ECM needs replaced with an updated unit.
PLUS: this repair should be covered for 96 months of use, or up to 80,000 miles. The replacement ECU will be installed totally for free. Call your local Toyota dealer & get an appointment.
Posted on Oct 13, 2008
This fix comes from the service manager of a Toyota dealer, he is a online expert named Toyota Ed.
Toyota is aware of this situation. Production changes have ocurred to correct this condition.
Here is what you do: Take your vehicle to your Toyota dealer. Tell them that you have a P-0741 code, and you want them to apply "Toyota Technical Service bulletin TC008-04" to your vehicle. They will perform several tests, and if you vehicle is lower than 5 years old, and less than 60, 000 miles, they will fix it for free. This TSB is covered by the Powertrain Warranty. Additionally, Thay may replace the ECU with an updated unit, and that particular warranty is in effect for 96 months or 80,000 miles.
This will definatly cure your issue
Posted on Jan 05, 2009
Take your car to a Toyota dealership. Have them scan the car for trouble codes. If they come up with a P-2716 code, you need a new Engine Control Unit (the computer). If your car has under 80,000 miles on it, Toyota will replace it for free.
Posted on Oct 16, 2009
why does my normal rpm always bug down when the engine start?and when I started to use the air con, the rpm was playing. It doesnt go on a certain point. it always range at 800rpm then it will down to 700. what am I might do to solve this probem?
Posted on Mar 13, 2010
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