Hello, world I have a 2007 honda civic that I am currently trying to get the check engine light cleared. The car started with a lot of codes in the system and had gradually made its way down to one code. I have replaced the catalytic converter along with both oxygen sensors as well as all 8 spark plugs and coils, along with a new EGR and a very effective EGR passage cleaning session. however, even after all of that and 2 different EGR valves, it is still throwing the p2413 code(this is the only code in the system). the car runs fine except for the occasional jerking that happens on acceleration, as well as every once in a while the RPMs at idle go down to about 500 and then surge to 1000 RPMs. Does anyone have any suggestions on what i should do next?

 

P2413 is a general EGR malfunction.

Complex 55 step diagnostics involve probing various PCM circuits and repairing open/shorted connections as well as updating/replacing the PCM.

Recommend you get a BISHKO Honda service manual via ebay.