Throwing a P0405 code and how to fix it?
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Teching In
Joined: Apr 2024
Posts: 8
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Throwing a P0405 code and how to fix it? I got a 2000 trans am, a4, 144k, long tubes y pipe, if any of that matters lol. It threw this code and im not sure if it did before i installed the headers but im sure it did. Car pulls hard on the street like short burst but ran disappointing times in the 1/4 at the track. 15.3 trapping 92. Trying to trace the issue as to why it ran so slow and this is something i’m thinking might have a cause. Any help as to why its throwing this code or why it ran so slow? Thanks
Registered User
Joined: Jun 2025
Posts: 5
Likes: 0
I got a 2000 trans am, a4, 144k, long tubes y pipe, if any of that matters lol. It threw this code and im not sure if it did before i installed the headers but im sure it did. Car pulls hard on the street like short burst but ran disappointing times in the 1/4 at the track. 15.3 trapping 92. Trying to trace the issue as to why it ran so slow and this is something i’m thinking might have a cause. Any help as to why its throwing this code or why it ran so slow? Thanks
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