P1130 & P1135 2000 Camry

[solo1279]

Hello-
I have a 2000 Camry with only about 30K miles. Just recently the engine light came on & my AutoTap tool shows:
P1130- HO2S Circuit Low Variance Bank 1 Sensor 1 &
P1135- HO2S Bank 1 Sen. 1 Mean Voltage Level
I was able to verify that since the production date is 11/1999, it's an O2 sensor & not an A/F sensor which I understand is on models from 07/2000 & newer. I'm also aware that there is a sensor on the front & rear exhaust manifolds & also one after the converter. Based on the above info, which O2 sensor would most likely be at fault? This car is only used locally & I wonder if that may have "fouled" the sensors.
Thanks!

[nhparrot]

Originally Posted by solo1279

Hello-
I have a 2000 Camry with only about 30K miles. Just recently the engine light came on & my AutoTap tool shows:
P1130- HO2S Circuit Low Variance Bank 1 Sensor 1 &
P1135- HO2S Bank 1 Sen. 1 Mean Voltage Level
I was able to verify that since the production date is 11/1999, it's an O2 sensor & not an A/F sensor which I understand is on models from 07/2000 & newer. I'm also aware that there is a sensor on the front & rear exhaust manifolds & also one after the converter. Based on the above info, which O2 sensor would most likely be at fault? This car is only used locally & I wonder if that may have "fouled" the sensors.
Thanks!

P1130 - A/F Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1) (Only for Calif.)
 Open or short in A/F sensor circuit
 A/F sensor
 Air induction system
 EGR system
 Fuel pressure
 Injector
 EC


P1135 A/F Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) (Only for Calif.)
 Open or short in heater circuit of A/F sensor
 A/F sensor heater
 ECM

[solo1279]

Thank you for the info! To my surprise I just found out that this is a California car, as per the decal under the hood. I didn't realize that California emissions cars were sold new in NY. I guess that means that it has an A/F sensor after all & not an O2 sensor at Bank 1, Sensor 1.
I had trouble locating that sensor using the diagram you included, does that diagram include the 2000 Camry, 1MZ-FE? Isee one going into the front exhaust manifold, & one on the rear exhaust manifold-are those the only two on this car, (other than the one after the cat)?

[nhparrot]

the file parloc2.pdf is for the 1mz-fe

[nabeel]

how important is it to get P1135 fixed immediately, will it do any damage to car?

[broccoli]

the way an o2 sensor works is basically to feed information about the combustion to the computer, to ensure that the mix is neither too lean nor too rich.

If the 02 sensor is faulty, the computer can no longer optimize the ratio, which translate into poor gas mileage. Also, you will be sending more unburnt gasoline through the catalytic converter, thereby reducing its life expectancy.

Other than that, it's probably safe to drive the car with a P1135.

[izuber]

Hello to all, I am looking to resolve a check engine light on a 2000 camry and since there are already quite a few posts & threads on this topic I am attempting to read through and enlighten myself.
Thanks for the expert opinions posted by various subscribers I find this site to be very helpful & useful.
People helping people quite a spirit it is!

[zing]

I just came back from a machanic for check engine light for my 2000 Camry v6 and he said both the sensors in the front are gone.. and gave a quote for 415(165 each sensor and 80 labor). i saw in this post that the part cost around 100 how much is the reasonable cost for replacement.. thnx in advance