tri@pdx

Hi everyone,
Anyone had the CEL P1457 before? It just came up last night for me. I brought it to Autozone for the code and browsed about it a bit. Any input would be appreciated. Thanks!
My S is 2003, 72,XXX miles, has Mugen exhaust and test pipe.

S2k_RN

Have you tried to clear it and see if it comes back on with the same code? If so, it may be your EVAP canister or a component associated with it. You could try removing the gas cap, check the cap and filler neck for cross-threading or damage, and re-tighten it back on. I can't recall which CEL I had on my old AP1 P1457 or P14756, but for me it was the gas cap. Between the two code one of them is likely the gas cap and the other the EVAP system. Not much help but check the gas cap first and try resetting the code and see if it comes back on.

therealorod

How long ago did you install the Exhaust + Test Pipe?

tri@pdx

Thank you! I will give that a try.

tri@pdx

Thanks for the reply!
The exhaust came with my S when I bought it 10,xxx miles ago. I installed the test pipe 5 months ago with the Blox CEL Eliminator Adapter as well.

#172CR

I've had one of the codes come up as well for EVAP leak. Ended up being the gas cap. Cleared the code and hasn't come back on since.

therealorod

+1 start with the Gas Cap, take it from there. If you're getting a new gas cap use the S2Ki discount we have at Bob Lanphere's Beaverton Honda. Don't bother getting a Gas Cap that isn't OEM

Ken1997tl

+1 for the gas cap. I'd tighten it, reset the CEL and cross your fingers. That's free. After that try a new cap. If that doesn't work, it's likely the purge valve.

snowwakerider23

If all else fails you can get a programmable ems and a tune, more hp and no more check engine light for like ever.

tri@pdx

Haha, that's something I probably do in the future.