May 3, 2009 · My check engine light has been on with a P0138 High voltage code, bank 1 sensor 2. I replace the 02 sensor near the manifold (before the cat) as told to...

May 30, 2025 · The P0138 code is set when the Engine Control Module (ECM) detects that the rear O2 sensor signal voltage remains excessively high for an extended period of time. Inspect …

Apr 10, 2010 · Running rich? Codes P0132, P0135, P0138 Jump to Latest 40K views 21 replies 12 participants last post by scott.sheckles713 Jun 1, 2023 Z

Aug 3, 2015 · Hi all, I got the p0138 and p0158 (high voltage to O2 sensor) codes up.2002 high output, Is this telling me to replace the O2 sensors or is it something completely different? …

Apr 20, 2009 · 99 XJ Sport. Replaced both O2 sensors over last year, am getting p0138 bank 1 sensor 2 code and p0141.e Just changed aft sensor and it came back. Checked harness, …

Jul 30, 2008 · Or will the P0138 code still show up even though the light went off? Should I just reset the computer and see if the light comes back on or stays off for good? I am going on a …

Jan 22, 2009 · P0138 is the high-voltage code for the downstream O2 sensor. If the sensor does not generate a variable voltage output after a fixed amount of time, the PCM substitutes a …

May 3, 2009 · La luz de verificación del motor se ha encendido con un código P0138 de alto voltaje, sensor 1 del banco 2. Reemplacé el sensor 02 cerca del colector (antes del …

May 4, 2009 · Kontrolka silnika świeci się z kodem P0138 Wysokie napięcie, czujnik 1 banku 2. Wymieniłem czujnik 02 w pobliżu kolektora (przed katalizatorem), jak mi powiedziano, na …

Jul 2, 2020 · P0138 and P0141 Jump to Latest 3.7K views 21 replies 4 participants last post by Z_MAN Jul 10, 2020 Z