HELP! CEL w/ Codes P0411 and P1479
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HELP! CEL w/ Codes P0411 and P1479
**If this is in the wrong section please either move it or let me know!**
So I recently had a check engine light on for a bad o2 sensor, which I assumed was the reason for my terrible gas mileage. Got that replaced and the light went away and I was happy for a while, but noticed my gas mileage was still pretty crappy. Today I got another CEL so I plugged my scanner and pulled those two codes and have no idea where to go from there, I looked up on forums and couldn't find anything that could help as this is my first Audi and I work better when someone shows me what to check rather than list it. Car is a 2002 Audi A4 1.8T Quattro automatic.
P0411: Secondary Air Injection System: Incorrect Flow Detected
Sporadic 002 -- Lower Limit Exceeded
P1479: Brake Boost Vacuum System: Mechanical Failure
Sporadic 008 -- Implausible Signal
If anyone could steer me in the right direction I'd greatly appreciate it.
So I recently had a check engine light on for a bad o2 sensor, which I assumed was the reason for my terrible gas mileage. Got that replaced and the light went away and I was happy for a while, but noticed my gas mileage was still pretty crappy. Today I got another CEL so I plugged my scanner and pulled those two codes and have no idea where to go from there, I looked up on forums and couldn't find anything that could help as this is my first Audi and I work better when someone shows me what to check rather than list it. Car is a 2002 Audi A4 1.8T Quattro automatic.
P0411: Secondary Air Injection System: Incorrect Flow Detected
Sporadic 002 -- Lower Limit Exceeded
P1479: Brake Boost Vacuum System: Mechanical Failure
Sporadic 008 -- Implausible Signal
If anyone could steer me in the right direction I'd greatly appreciate it.
Last edited by Joshua Rodriguez; Dec 3, 2015 at 02:38 PM.
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traian2003
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Mar 30, 2007 09:05 PM