P0455 Audi - should I replace the engine module as the dealer suggested?

Question

Dealer suggested replacing the engine control module for $1,700.

Answer 1

Hi there,

This code is for an evap leak malfunction. I would not replace the ECM unless ALL other tests prove fine. Smoke test the evap system and check the purge valve, canister valve and the pressure sensor including the wiring. Just throwing a computer at it won't solve the problem.