Please take the time to remove the screw that holds the air temp sensor in the charge pipe, and put sealant on the threads. Silicone works just fine.
There is a possibility of a boost leak from that spot because the threaded hole in the welded flange goes all the way through. The bolt does not extend into the pipe, but because the flange can't be welded from the inside, air can escape from the charge pipe and get under the flange. It will then get past the threads of the bolt and leak pressure.
It's an oversight on my end, and thankfully a customer pointed it out to me. I have performed several boost leak test on my own Sonic, but never had a leak at that sensor. After removing the bolt, I realized why. I had put sealant on it...A step in the instructions I forgot to mention.
Anyway take a couple minute to do this to ensure all the air, the turbo was nice enough to pressurize for you, makes it into the engine.
Sorry for any inconvenience this may have caused.
There is a possibility of a boost leak from that spot because the threaded hole in the welded flange goes all the way through. The bolt does not extend into the pipe, but because the flange can't be welded from the inside, air can escape from the charge pipe and get under the flange. It will then get past the threads of the bolt and leak pressure.
It's an oversight on my end, and thankfully a customer pointed it out to me. I have performed several boost leak test on my own Sonic, but never had a leak at that sensor. After removing the bolt, I realized why. I had put sealant on it...A step in the instructions I forgot to mention.
Anyway take a couple minute to do this to ensure all the air, the turbo was nice enough to pressurize for you, makes it into the engine.
Sorry for any inconvenience this may have caused.
