Search is your friend. Search here. Search google.
Try link below and go from there.

https://www.s2ki.com/forums/s2000-un...-312955/page2/

 

CEL 1457 is an evap code and will have nothing to do with your intake. I would start you checking your gas cap. Good luck.

 

P1457
Evaporative Emissions (EVAP) Control System Leakage (EVAP Canister System)

When is the code detected?
The P1457 code is detected when the EVAP system has a very small leak.

Possible symptoms
Engine Light ON (or Service Engine Soon Warning Light)
Possible a noticeable fuel odor caused by the release of fuel vapors

P1457 Honda Description
The evaporative emission (EVAP) control system stores fuel vapor from the fuel tank in the EVAP canister temporarily to prevent it from escaping to the atmosphere and to enable it to be drawn into the engine by intake manifold vacuum and burned. In addition, the onboard refueling vapor recovery system (ORVR) stores fuel vapor generated when refueling in the EVAP canister. The EVAP control system leak detection method improves the accuracy and frequency of the detection by determining faulty components and vapor leakage for each part. The EVAP control system (from the purge valve to the fuel tank) is divided into two parts. One is the "EVAP Canister Side" (from the EVAP two way valve to the purge valve) and the other is the "Tank Side" (from the EVAP two way valve to the fuel tank). There is 0.04 inch leak detection and 0.02 inch leak detection. If the 0.04 inch leak detection results are OK, the 0.02 inch leak detection runs.

Unfortunately, small leaks are very difficult to diagnose. You should have a repair shop use smog to find the source of the leak, in fact smog is the first thing that should be use to diagnose EVAP small leaks.

From SlowS2k on these forums: Most likely cause in cold climates is a corroded/inernally shorted bypass solenoid. H20 can get inside the solenoid, and if it contains road salt corrode the windings.