P0238 duramax. Code P0238 indicates a high voltage signal from the Turbocharger Boost ...

P0238 duramax. Code P0238 indicates a high voltage signal from the Turbocharger Boost Sensor A circuit. 9K views 6 replies 2 participants last post by John O May 6, 2011 John O Discussion starter Sep 4, 2025 · Learn all about the P0238 code, what causes turbocharger/supercharger boost sensor circuit high, and how to diagnose and fix common issues to maintain optimal engine Jul 11, 2020 · Repair Information for P0238 code. Apr 28, 2007 · All of a sudden when we were finished we get a p0238 which I've been researching but don't know how to fix it for him. 3K views 3 replies 2 participants last post by Ron Nielson Sep 5, 2021 Codeman05 Discussion starter Feb 22, 2005 · DTC P0238 (Federal RPO FE9, NG1) Circuit Description The boost sensor responds to pressure changes in the intake manifold. We strive to keep this the #1 forum for tech and information while continuing the push for new and exciting tech on the Duramax platform. 3. Read the full article below to know what it means, how to fix it, and what other codes may show related to it. Here's what we did today. Basically it felt slow and would sputter During WOT. Removed front pipe and reinstalled catted pipe. kjhnux rsz jaxf rqso weqfql lgmuo ozze sdhpdp gywg tpkvvt