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Mdx 07 p2254,p0154

All-Wheel Drive:77 Emission error code P0154 Emission error code P2254 Can I fix this?

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Posted on Jan 02, 2017

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SOURCE: I have a 2003 3.0 engine Honda Accord that is

Here it goes.
P2197 - Front Air Fuel Sensor (O2 sensor) Bank 2 - Sensor 1 Signal stuck lean.

P0154 - Front Air Fuel Sensor (O2 Sensor) Bank 2 - Sensor 1 Heater System Malfunction.

P2254 - Front AIr Fuel Sensor (O2 Sensor) VS Line high voltage.

IF Trouble codes P0134 or P0154 are present diagnose them before code P2254.

The first thing I would do would be check the heater circuit. You will have ground, and 12V+ to the 02 sensor heater line on a cold start. This heats up the oxygen quicker and allows it to operate in the correct amount of time. 9/10 times if there is a heater circuit code it is the oxygen sensor. But 1/10 times it is a blown fuse. So checking the voltage at the sensor is a quick test for P0154.

I would backprobe the signal line when the vehicle is at a full operating temp with a graphing meter (if avail) or use a DVOM. You should see it switch between .1 volts to 1V. It should not continuously move up and down. This indicates the computer is in good fuel control.

Diaginosis the heater circuit first is best because code P2197 can be set from anything that can cause that motor to run lean. (Plugged fuel filter, low fuel pressure/volume, vacume leak).

Hope this gives you a solid path to go on & good luck.

Posted on Dec 09, 2009

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1 Answer

Codes p2135,p1511,p0154


Hi Andrew,
P2135-Throttle position sensor correlation error.
P1511-Throttle actuator control power management failure of throttle control actuator.
P0154-Rear oxygen sensor inactive.
Good luck

Apr 29, 2015 | 2009 Harley Davidson FLHTCU Ultra Classic...

1 Answer

Trouble code p0154


code p0154 refers to heated oxygen sensor (HO2S) 1 bank 2 -- no activity detected===causes --wiring---HO2S---= ECM
it also refers to oxygen sensor (O2S) --no activity detected--===causes --- wiring---O2S sensor---ECM. May be you did not replace the sensors causing the fault.

Jan 03, 2014 | Cars & Trucks

1 Answer

Engine Service Soon Light On code P0154


Error Code: P0154
Description:
Heated Oxygen Sensor (HO2S) 1 , Bank 2 - No Activity Detected
Problem areas:
- Wiring.
- Open circuit in signal wire, between Heated Oxygen sensor 1, Bank 2 and ECM. (Must check and confirm)
- Heated oxygen sensor (HO2S).
- Engine control module (ECM).

Nov 20, 2013 | 2003 Mitsubishi Montero Sport

2 Answers

How do i repair code p0154


P0154 definition 02 (Oxygen sensor) circuit no activity detected bank 2 sensor 1, You need to test the heater circuit for its 12 volts and test the ground, its basically a dead 02 sensor,If you have a misfire you would have code as lean activivty, basically there is no lean to rich activity for this code to come on

May 16, 2011 | 2001 Chevrolet Tracker

2 Answers

The engin light is service soon part pv154


P0154 is an OBDII code for a 'lazy' O2 sensor, it is not switching fast enough for the ECU to adjust parameters when managing your engine-you probably are over 100,000 miles now, they get a coating on them that makes them react slower than expected-time to replace, they run about $50 and are pretty easy to change.

Feb 10, 2011 | 2000 Oldsmobile Intrigue

2 Answers

P0154 code and p01153


both codes point to the oxygen sensor on bank 2 sensor 1 ..
that would explain the rough running also .. the engine will default to a rich condition ...

p0154 indicates no activity on bank 2 sensor 1 oxygen sensor
p01153 is showing "low switching" for bank 2 sensor 1 oxygen sensor ...

there may be a wiring pigtail coming from the sensor. that plugs into another connector a few inches away .. check that connector for damage or corrosion .. if its ok then you likely need a new oxygen sensor ..

its not a good idea to continue driving with this condition since it will eventually damage the catilytic converter. that is probably getting very hot now with the extra load of fuel ..

Jul 05, 2010 | 2002 Chevrolet Avalanche

2 Answers

I have a 2003 3.0 engine Honda Accord that is giving me trouble codes P2197 P0154 P2254, what do these mean? Thank you.


Here it goes.
P2197 - Front Air Fuel Sensor (O2 sensor) Bank 2 - Sensor 1 Signal stuck lean.

P0154 - Front Air Fuel Sensor (O2 Sensor) Bank 2 - Sensor 1 Heater System Malfunction.

P2254 - Front AIr Fuel Sensor (O2 Sensor) VS Line high voltage.

IF Trouble codes P0134 or P0154 are present diagnose them before code P2254.

The first thing I would do would be check the heater circuit. You will have ground, and 12V+ to the 02 sensor heater line on a cold start. This heats up the oxygen quicker and allows it to operate in the correct amount of time. 9/10 times if there is a heater circuit code it is the oxygen sensor. But 1/10 times it is a blown fuse. So checking the voltage at the sensor is a quick test for P0154.

I would backprobe the signal line when the vehicle is at a full operating temp with a graphing meter (if avail) or use a DVOM. You should see it switch between .1 volts to 1V. It should not continuously move up and down. This indicates the computer is in good fuel control.

Diaginosis the heater circuit first is best because code P2197 can be set from anything that can cause that motor to run lean. (Plugged fuel filter, low fuel pressure/volume, vacume leak).

Hope this gives you a solid path to go on & good luck.

Nov 16, 2009 | 2003 Honda Accord

1 Answer

Code p0154


P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)

Check for the following:
1. A poor connection or damaged wiring harness. Inspect the harness connectors for :

Backed out terminals
Improperly formed or damaged terminals
Poor terminal to wire connection
Damaged harness

2. A malfunctioning HO2S heater on heater circuit

Oct 25, 2009 | 2001 Mitsubishi Montero Sport 4WD

1 Answer

Codes


I printed a list of error codes from cumminsforum.com and P0148 is a fuel delivery error, P0154 is not in the list.
Hope this helps.

Aug 02, 2008 | 2006 Dodge Ram 2500

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