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Can a p2bac cel be deactivated?

Can a p2bac cel be deactivated?

Ok, basically P2BAC is an “Informational” Code meaning that it only comes up due to another problem. Once that other problem is solved, the P2BAC can be cleared. —>> Click Here to view <<— What I recommend to do to start is to pull both O2 Sensors and blow them out with compressed air.

What is the p2bac code on a Dodge 6.7?

Just came back from parts store and see that the code 2271 is for the o2 sensor I replaced in March. Could it have been sooted up after the egr cleaning? Only showing p2271 and the P2bac codes

When did I clear my p2bac cel for NOx?

As for the CEL…A few month ago had a cel I believe p2270 and changed the down stream o2 sensor.Then about a month ago got a perform egr service notice is messages. And soon after a Cel for P2bac for NOX excedance/ egr deactivation.A couple weeks later I performed the service on the egr valve and cooler without incident. Went and cleared the CEL.

How is the p2bac code different from other codes?

The P2BAC code differs from many other codes in that it is an information only code. It is not meant to be diagnosed but to make you aware that another problem exists and the exhaust gas recirculation (EGR) system has been deactivated.

What does p2bac mean on an EGR system?

Note that this code only applies to vehicles that are fitted with EGR systems. It should be noted that code P2BAC is informational in nature, and is set only to alert the driver that the EGR system has been deactivated.

Where is the p2bac sensor located in the PCM?

Should the EGR system be deactivated for whatever reason, excessive amounts of NOx will necessarily be formed during the combustion process, and the PCM will therefore set code P2BAC and illuminate a warning light as a warning to the driver that the EGR system had been deactivated or disabled. Where is the P2BAC sensor located?

What does a p2bac NOx exceedance code mean?

When this code is stored, it means that the PCM has detected a level of nitrogen oxide (NOx) that exceeds a programmed limit. This detection may have taken place in the NOx trap or the diesel particulate filter (DPF). It may also be due to a defective DPF pressure sensor or NOx sensor.

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Ruth Doyle