I have had the boost stick installed for about 7k miles and haven't had a problem until recently. The truck has started to set a P0237 (Turbo Charger Low Boost Sensor A Circuit, Low Input) when the boost stick is installed, and the turbo sounds like it is in engine warm-up mode.

With the boost stick off the truck (extension still installed) everything is fine. I have checked the pins on the connectors and everything looks fine. Is it possible there is something that has gone wrong internally in the boost stick? Is there anyway I can test it with a good voltmeter?

Any ideas? Thanks.

Have you called Kennedy?

If you find out what is causing it, please update this thread and share. I've been getting that code ever since I took my BS off. Never had a problem with it on. Both baro and boost sensors have been replaced, have checked for bent pins and found none. One of my harnesses was even replaced and am still getting that code, along with an occasional P0299. :(

Possible, but not probable. If need be Fingers can test the stick and see what it's doing.