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2000 4 cyl turbo VW Passat: DTC P0411. Secondary air pump
does not run on startup but runs OK when 12V is applied directly. Are there
hidden fuses or relays that could be faulty? Could this be problem in EMC? Exhaust
check valve is OK.
I have a 2000 Passat (1.8T), and I recently had this code (P0411). First thing I did was to clean the mass airflow sensor (MAF) and reset the code by disconnecting the battery. Unfortunately, the code came back. It also came back with P1426. It ended up being the purge valve ($60 at ECSTuning, $140 at the dealer...I went with ECSTuning). Before you drop money on the part, inspect all of the hoses to ensure they are not cracked or torn.
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