Question about 2002 Hyundai Accent

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Engine Management Light

Fault dignoses is "Slow response from No 1 Lambda Probe - Engine management light was on but has now gone out also I thing the exhause is busted

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If you have an exhaust leak before or after the catalytic convertor, then the response of the of the sensor could be slowed.

An excerpt from Wikipedia:
--------
Location of the probe in a system
The probe is typically screwed into a tapped hole in the exhaust, located after the branch manifold of the exhaust system combines, and before the catalytic converter. New vehicles are required to have a sensor before and after the exhaust catalyst to meet U.S. regulations requiring that all emissions components be monitored for failure. Pre and post-catalyst signals are monitored to determine catalyst efficiency. Additionally, some catalyst systems require brief cycles of lean (oxygen-containing) gas to load the catalyst and promote additional oxidation reduction of undesirable exhaust components.
--------
It's a good article about the two-sensor system and oxygen sensors in general and is available here:

http://en.wikipedia.org/wiki/Oxygen_sensor

Posted on Jul 20, 2008

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Bmw code 29a8 power management failure and l cant understand the meaning


BMW outputs codes in Hex format. The tool then reads the code and it may translate it to its own format. Some 29A.. code definitions here:

29A0 Lambda Sensor Post Cat Bank 2 Signal
29A1 Lambda Sensor Post Cat Bank 2 Signal
29A2 Lambda Sensor Pre Cat Bank 2 Signal
29A3 Lambda Sensor Pre Cat Bank 2 Signal
29A4 Lambda Sensor Heater Pre Cat Bank 1 Activation
29A5 Lambda Sensor Heater Pre Cat Bank 2 Activation
29A6 Lambda Sensor Pre Cat Bank 1 Signal
29A7 Lambda Sensor Pre Cat Bank 1 Signal
29A8 Power Management Network Failure
29A9 Power Management Battery
29AB Torque Request via CAN
29AE Tank Cap

Code 29A8 i
t's a NETWORK management fault, related with tne main computer. Will need to visit BMW dealer to delete or reset it.

I hope helps with this.

Mar 18, 2011 | 2009 BMW 5 Series

1 Answer

Code 29a8 power management failure, ldont understand the meaning


BMW outputs codes in Hex format. The tool then reads the code and it may translate it to its own format. Some 29A.. code definitions here:

29A0 Lambda Sensor Post Cat Bank 2 Signal
29A1 Lambda Sensor Post Cat Bank 2 Signal
29A2 Lambda Sensor Pre Cat Bank 2 Signal
29A3 Lambda Sensor Pre Cat Bank 2 Signal
29A4 Lambda Sensor Heater Pre Cat Bank 1 Activation
29A5 Lambda Sensor Heater Pre Cat Bank 2 Activation
29A6 Lambda Sensor Pre Cat Bank 1 Signal
29A7 Lambda Sensor Pre Cat Bank 1 Signal
29A8 Power Management Network Failure
29A9 Power Management Battery
29AB Torque Request via CAN
29AE Tank Cap

Code 29A8 i
t's a NETWORK management fault, related with tne main computer. Will need to visit BMW dealer to delete or reset it.

I hope helps with this.

Mar 17, 2011 | 2009 BMW 5 Series

2 Answers

My engine management light is permantly on. How can I reset it?


Hi this could be many things.

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Regards
Dan

Feb 06, 2010 | 2005 Peugeot 405

1 Answer

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