allroad throwing codes
10-15-2008, 05:03 PM
#1
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allroad throwing codes
Need some advice before heading to the dealer...
During my 1000 mile drive to St. Louis from D.C., the allroad threw a P0421 - Warm Up Catalyst; Bank 1: Efficiency Below Threshold code. I cleared it and it has come back twice since and now I'm also getting P0442 - EVAP Emission Control Sys: Small Leak. Any idea on what to expect is wrong. I'm out of my CPO warranty and like to be somewhat informed before getting work done.
Thanks in advance!
During my 1000 mile drive to St. Louis from D.C., the allroad threw a P0421 - Warm Up Catalyst; Bank 1: Efficiency Below Threshold code. I cleared it and it has come back twice since and now I'm also getting P0442 - EVAP Emission Control Sys: Small Leak. Any idea on what to expect is wrong. I'm out of my CPO warranty and like to be somewhat informed before getting work done.
Thanks in advance!
10-17-2008, 07:58 AM
#6
You have a leak somewhere... fix that first it could be as simple as the gas tank cap
to changing the evap canister.... ussually when the leak is small the problem is in the check valves... but I could be wrong.
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