Diabolical Diagnosis - Hemi Ram Stuck at 1500 RPM with P2128 and P2138 @WatchWesWork
Diabolical Diagnosis - Hemi Ram Stuck at 1500 RPM with P2128 and P2138 @WatchWesWork
Uploaded April 2022 | Updated September 2026, 3 hours ago
This 2011 Ram 2500 with a 5.7 Hemi intermittently goes into a limp mode where it sticks at 1500 RPM until you cycle the key. It has codes P2128 and P2138 for APP2 voltage correlation and APP2 circuit high.

Thanks to @L1Training and @SouthMainAuto

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Diabolical Diagnosis - Hemi Ram Stuck at 1500 RPM with P2128 and P2138

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