DIS Errors P0171 & P0174 - Do Smoke Test First!

[Dark_stranger]

Guys, like a few other users, I have had the engine management light showing on my dashboard for a while and when hooked up to a DIS scanner, i got the error codes P0171 & P0174, meaning the fuel mixture is to lean, or in other words, getting to much air, so compensating with extra fuel. After much reading, I tried cleaning the MAF sensor with cleaner, but this didnt fix the issue. Therefore more reading and ended up swapping out the MAF sensor, But again still the error light was showing. Then i read about a smoke test where you blast smoke into the ait intake and if there are any split pipes, the smoke will come out. Therefore, I tried this, this morning, and i have a split pipe (see picture, its split on the ribbed bent section). So possibly, cleaning and replacing the MAF sensor was a pointless exercise. Therefore, before you do anything else, run a smoke test.