How to fixs my volvo p2179 problem

Sounds like you need new oxygen sensors.
Suggest take your vehicle to Autozone parts and have them test your engine codes. They do this for free.
They will tell you what you need to replace and more than likely they will have the parts in stock.

code p 2179 refers to system too lean off idle bank2===causes ---fuel pressure --injectors ---intake leak
also refers to adaptive heated oxygen sensor (HO2S) control--bank 2---signal high===causes ---wiring ---short to positive --HO2S --ECM
at this point I would be focusing the attention on the HO2S sensor and it's wiring
the HO2S reports on the exhaust gas composition to the ECM so that fuel /air settings can be adjusted to maintain the gas composition within set parameters
if those parameters cannot be maintained then the ECM goes a bit funny in trying to adjust injector fuel settings , fuel pressure regulator settings ( if electronic controlled ) and MAF settings

This code refers to a lean condition on cylinder bank 2. The stabilitrac will disable on most vehicles if the check engine light comes on. You may have a vacuum leak from one of the hoses causing this code. Clearing the codes should put stabilitrac back in service.

Could be, but you will need to check for trouble codes, since the engine light came on. The code or codes may help you troubleshoot it.

CODE P2179 ON A CADILLAC CTS 2006

P2197 - Oxygen Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1
P2187 - System Too Lean At Idle Bank 1
P2177 - System Too Lean Off Idle Bank 1
P2195 - Oxygen Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1
P2179 - System Too Lean Off Idle Bank 2

I am not sure what your Mazda is, but from the sounds of it, both of your Oxygen Sensors are shot. Replace them both, or check for vacuum leaks. It may be a good time to inspect and replace the PCV Valve and PCV Valve hose, too.


I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

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P2179 System Too Lean Off Idle .Have read post where people have been getting this code after installing a aftermarket intake.

99% Bad ABS Module.

Unless you have a cut ABS wheel sensor.
I fix them my self.

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Well what model is your Volvo? Usually the 141 code is the oil temp sensor but it depends on the model.