P0401 code

Hello,

In the diagrams down below I have included for you the factory diagnostic troubleshooting flowchart for Direct Trouble Code(DTC) P0401 for your vehicle. It will require you to use a multi-meter, so I have included this link below for you if you are unfamiliar with how to use one:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Please go through these guides, if needed, and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros

Turned out they left the sensor for the EGR temperature unplugged. Now getting a p0402 code, ironically.

Hello again,

That is ironic and a little funny actually. But, in good spirits, I have included the diagnostic troubleshooting flowchart for your vehicle from the manufacturer for DTC P0402, with generic OBD2 scan tool testing. Please go through this guide and get back to us with what you find out.

Thanks,
Alex
2CarPros