The idle surges when in neutral and park, but there is no noticeable surge in gear or reverse. The car has an automatic transmission, if that makes a difference.
I have to this point replaced the Fuel pressure regulator, done new plugs, cleaned the IAC and throttle body, replaced the MAP sensor, cleaned the MAF sensor and replaced the air filter, replaced the CVVT solenoid gasket and cleaned the CVVT solenoid.
I am getting (at last checking) an ODB-II code for "Camshaft sensor output incompatible", I don't have the code handy, else I'd list it.
How can I get rid of this strange surging issue and fix the one last lingering CEL code so I can get the car inspected (NYS inspection)?