hello I have had an issue with a high sand surging idle from 1200 to 2000 rpm. In gear car runs fine no problem. I have tried new tps, new map, new IACV, replaced coolant and removed air from the system. I have checked vacuum leaks. Also have cleaned intake and throttle body. And car has no codes. What else could it be? Thanks

 

Base idle speed setting.
https://www.hondaaccordforum.com/for...e-speed-38734/

However(!) I've never had a V-6 Accord, and nobody posted in that thread whether the same process applies to the V-6.

I'm also going to move this over to General Tech where more people will probably read it & help.