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P0138 Diagnostic Help for 2008 Dodge Ram 1500 5.7L with Aftermarket Headers and Custom Tune
Hello, I recently installed a camshaft and long tube headers on my 2008 Dodge Ram 1500 5.7L, along with a custom tune by Jay Greene. A few weeks after the installation, the che...
Ram 1500 | P01382002 Jeep Liberty 3.7L Misfire & Knock Codes P0302, P0325, P0138 - Fuel Injector or Engine Issue?
Hi everyone, I'm new to this forum and recently started working on my 2002 Jeep Liberty with a 3.7L engine. The car has been sitting for about 2-3 months and has accumulated 18...
2002 Jeep Liberty | P01382005 Ram 1500 4.7L 4x4: P0138, P0138PD, and P0420 Fault Codes Explained - What They Mean and How to Fix
My 2005 Ram 1500 with a 4.7L V8 engine and 4x4 drivetrain is showing three diagnostic trouble codes: P0138, P0138PD, and P0420. I'm unable to find clear information about what t...
05 Ram 1500 | P01382001 Jeep Grand Cherokee 4.7L V8 P0138 Code: What Does Bank 1 Sensor 2 Mean?
I own a 2001 Jeep Grand Cherokee Limited with a 4.7L V8 engine and am trying to understand what the P0138 diagnostic trouble code means. The code indicates 'O2 Sensor Signal Sho...
2001 Jeep Grand Cherokee | P0138P0138, P0141, P0171 Fault Codes on 1996 Jeep Grand Cherokee - Stalling at Idle and Stop
I own a 1996 Jeep Grand Cherokee with a newly installed 4.0L inline-6 engine. The vehicle is now displaying fault codes P0138, P0-141, and P0171. Whenever I try to idle, turn th...
1996 Grand Cherokee | P01382011 Honda Accord V6 Check Engine Light: P0138 and P0430 Fault Codes Explained
I'm experiencing persistent check engine light issues on my 2011 Honda Accord V6, with fault codes P0138 and P0430. After replacing all oxygen sensors, the warning light remains...
2011 Honda Accord V6 | P01382010 Cobalt LT Check Engine Light & Power Reduction: P0107, P0138, C342D Fault Codes Explained
I own a 2010 Chevrolet Cobalt LT and am experiencing intermittent check engine light activation accompanied by 'Engine Power Reduced' warnings. During these episodes, the vehicl...
2010 Cobalt | P010797 Jeep ZJ 4.0L Engine Stalls with Multiple OBD2 Codes: P0340, P0118, P0108, P0351, P0113, P0138 - Diagnosis & Fixes
Hi everyone, first-time poster with a 1997 Jeep Grand Cherokee Laredo 4.0L engine. I've diagnosed multiple OBD2 fault codes using an Actron scan tool: - P0340: Cam Position Sen...
97 Jeep ZJ | P01082003 Kia Rio 1.6L Engine Fault Codes: P0447 (EVAP Vent Valve), P0038, P0138, P0170, and P0501 - Diagnosis and Fixes
My 2003 Kia Rio 1.6L is showing multiple OBD-II diagnostic trouble codes: P0447 (EVAP emission system - vent control valve circuit open), P0038 (heated oxygen sensor bank 1 sens...
2003 Kia Rio | P00381998 Dodge Dakota 3.9L V6 Magnum P0138: Fuel Cutout, Engine Bogging, and Evaporative System Issues
I'm experiencing persistent engine issues with my 1998 Dodge Dakota equipped with the 3.9L V6 Magnum engine. When idling, the vehicle runs smoothly, almost like a kitten—very sm...
1998 dodge dakota | P01381997 Dodge Dakota Automatic Transmission Shifting Problems with P0138 O2 Sensor Code
I own a 1997 Dodge Dakota Sport with a 3.9L engine. I'm experiencing persistent shifting issues and the check engine light is on. After replacing the throttle position sensor (T...
1997 Dodge Dakota | P01382000 Caravan P0132 AND P0138
I'll check the ECT and Air Temp with scan tool in a few minutes. It's cold so I can take notes as it warms up. I'm not sure if the backfire is out the intake or exhaust. I'll ha...
2000 Caravan | P01322000 Caravan P0132 AND P0138
So. I couldn't pass DEQ because of a Not Ready status. Repair shop recommended a new PCM and I concurred. So I bought a VIN programmed PCM online. Installed. And now I have P013...
2000 Caravan | P01322002 Nissan Sentra 1.8L Stalls & Won't Start: P1217, P0506, P0138, P0158, P0117, P0139, P1146 Fault Codes Explained
Hello! I have a 2002 Nissan Sentra 1.8L that won't start — it turns over but fails to ignite. My OBD2 scanner shows eight fault codes: P1217, P0507, P0138, P0158, P0117, P0139, ...
2002 nissan sentra | P01172009 Chevrolet Aveo P0101 P0138 P1400 P2271 - Hesitation and Surging on Takeoff
My 2009 Chevrolet Aveo is experiencing hesitation followed by sudden surging during takeoff. The vehicle has been diagnosed with multiple OBD2 trouble codes: P0101 (Mass Airflow...
2009 chevy aveo | P01012005 Chevy Malibu P0138 O2 Sensor Bank 1 Sensor 2 Fault Diagnosis
The check engine light is on and diagnostic code P0138 has appeared. This code indicates a high voltage circuit issue with the oxygen sensor in Bank 1, Sensor 2. What could be c...
2005 Chevy Malibu | P0138P0138 OBD2 Code Meaning and Solution for 2000 Jeep Wrangler
Hi, I'm looking for clarification on what the P0138 OBD2 diagnostic code means for my 2000 Jeep Wrangler. Can someone explain the cause and what steps I should take to resolve i...
wrangler 2000 | P01382008 Ford Focus P0138 OBD2 Diagnostic Code Explanation
I am experiencing a P0138 diagnostic code on my 2008 Ford Focus. The code indicates an issue with the oxygen sensor heater circuit, specifically related to the front oxygen sens...
2008 ford focus | P0138P0132 and P0138 OBD2 Codes in 2000 Jeep Grand Cherokee: Causes and Fixes
My 2000 Jeep Grand Cherokee failed its smog inspection due to OBD2 fault codes P0132 and P0138. I need help understanding what these codes mean and how to fix them. Can anyone p...
jeep grand cherokee 2000 | P0132