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P2096 Check engine light


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Hi,

My car check engine light was on. I went to a workshop to get it diagnose. The error code is P2096
Told me need to change catalyst convert....few thousand.

Any encounter this before?

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Aiya, you know you can Google such error codes.

 

http://www.thaimazda3.com/svmanual/esicont/en/srvc/html/B3E010202000W04.html

Possible causes:

 

• Leakage exhaust gas
• Rear HO2S malfunction
• IAT sensor malfunction
• ECT sensor malfunction
• Air suction in intake-air system
• Front HO2S malfunction
• MAF sensor malfunction
• Insufficient fuel line pressure
• Fuel pump unit malfunction
• Leakage fuel
• Improper operation ignition system
• Insufficient engine compression
• Fuel injector malfunction
• PCM malfunction

 

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Hello,

 

I know my answer is very late, but maybe it could help others :

 

  • Code: P2096
  • Description: Post Catalyst Fuel Trim System Too Lean Bank 1
  • Possible causes :
    • Faulty Heated Oxygen Sensor
    • Heated Oxygen Sensor harness is open or shorted
    • Heated Oxygen Sensor circuit poor electrical connection
    • Exhaust leaks
    • Contaminated Heated Oxygen Sensor

I hope you found a solution to your problem

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I have similar issue with P2096, tried changing purge valve but to no avail. Anyone with recently experience that able to resolve this? 

Another workshop ask me to change catalytic convertor at $600 or clean the CAT

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Supersonic
24 minutes ago, Roverboy said:

I have similar issue with P2096, tried changing purge valve but to no avail. Anyone with recently experience that able to resolve this? 

Another workshop ask me to change catalytic convertor at $600 or clean the CAT

actual experience may not help because this issue involves too many possibilities, so it will take some time and effort, would mean even money to isolate the source of the problem cause, refer to the post above yours by @ElyasCham.

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54 minutes ago, Roverboy said:

I have similar issue with P2096, tried changing purge valve but to no avail. Anyone with recently experience that able to resolve this? 

Another workshop ask me to change catalytic convertor at $600 or clean the CAT

This is issue with the air-fuel mixture. More air than fuel. I dont think it is an issue with the cat if your car is running on petrol.

Possible faults are from air sensors, air intake or exhaust side. Or parts that is not delivering enough fuel. Like a faulty fuel pump, fuel filter clogged, fuel injectors clogged.

One of the first things you can try on your own is using a fuel system cleaner that you can get from caltex. A bottle mix with about 45L of fuel. And then take a long spirited drive. 

See whether the check engine light goes away.

 

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