HELP!!!p0402!!!

[BaseRunner]

Hey all, I recently replaced my EGR valve and today when i turned the car on the check engine light came on and threw a code p0402 :wtf: I have no idea what could be wrong :moping:. If someone has expierience with this I'd appreciate the help please!!!! thank you in advance!

 

[97-4runr]

I recently got my fuel injector replaced that went bad, and had the same error code. Turns out the mechanic incorrectly routed the vacuum tubes during reassembly and was the culprit. Not sure if this helps at all, but took a whole bunch of troubleshooting for me to figure that out. Very frustrating but worth checking

 

[ninethings]

I recently got my fuel injector replaced that went bad, and had the same error code. Turns out the mechanic incorrectly routed the vacuum tubes during reassembly and was the culprit. Not sure if this helps at all, but took a whole bunch of troubleshooting for me to figure that out. Very frustrating but worth checking

just a heads up, you're replying to an 11yo post. Certainly hope they've got it figured out by now lol