getting a p0134 code on my 2004 honda civic lx

[619DioFan]

Check for possible damage to the wiring in that circuit.

Topic

[SuperTechJeff16415]

Check the condition of the o2 sensor it self.

[college man]

All great posts.

[dreamer2355]

Do you have a scan tool that shows PID data?_x000D_
_x000D_

[EricTheCarGuy]

Yea if you could get a look at a scan tool to show you what you’re looking at that would be a good start, that way you could see what the computer is seeing, it could be a problem other than the sensor or your ‘new’ sensor is bad but you wont’ know till y

[risacher]

[quote]Quoted From EricTheCarGuy: _x000D_
_x000D_
Yea if you could get a look at a scan tool to show you what you’re looking at that would be a good start, that way you could see what the computer is seeing, it could be a problem other than the sensor or your

[college man]

The evap code should not cause the p0420. with the milage_x000D_
on the car. I believe the cat is worn out and can’t clean the emissions_x000D_
effectively anymore. if you can read live data. check cat o2 signal._x000D_
the voltage should hang around 0.5-0.8 v at cruise sp

[EricTheCarGuy]

The EVAP code will not cause the P0420 as they are unrelated systems.

[Author]

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