Traditional gasoline car fault
Search fault code and browse forum case posts.
2009 GMC Yukon 5.3L Engine Fault Codes P0030, P0135, P0053 - O2 Sensor Issues and Diagnosis Tips
I'm experiencing persistent fault codes P0030, P013-than I've already replaced all oxygen (O2) sensors and cleared the codes using an OBD2 scanner. The engine runs fine when col...
GMC Yukon | P0030Hyundai Elantra P2626 and P0030 Fault Codes: O2 Sensor Heater Circuit Issues and Wiring Explanation
My 2008 Hyundai Elantra is displaying two diagnostic trouble codes: P2626 (O2 sensor pumping current trim circuit/open bank 1 sensor 1) and P0030 (generic O2 sensor heater contr...
Hyundai Elantra | P00302004 Dodge Grand Caravan P0030 Fault Code: Misfire Diagnosis and Solutions
I own a 2004 Dodge Grand Caravan Anniversary model and have performed extensive troubleshooting on this vehicle. I've replaced the oxygen sensor, spark plugs, ignition wires, te...
2004 Dodge Grand Caravan | P00302015 VW Jetta 2.0L with P2251, P0130, and P0030 Error Codes - Oxygen Sensor or Wiring Issue?
Hello everyone, I own a 2015 Volkswagen Jetta 2.0L with approximately 38,000 km (almost new). Recently, the check engine light has come on and remains steady. I took the vehicl...
2015 Jetta | P00302009 Chevy Trailblazer OBD2 Codes P0141, P2101, P0030, P0102, P0135, P0036 - Rough Idle and Misfire Diagnosis
Hello everyone, I'm new to this forum and appreciate any help or guidance in advance. I recently purchased a 2009 Chevrolet Trailblazer that is experiencing severe idle roughne...
2009 Chevy Trailblazer | P00302004 Malibu LT Maxx V6 3.5L - P0030 Heater Circuit O2 Sensor Bank 1 Sensor 1: Diagnosis & Aftermarket Sensor Issues
My 2004 Chevrolet Malibu LT Maxx with a 3.5L V6 engine is showing Diagnostic Trouble Code (DTC) P0030 (Heater Circuit for HO2S Bank 1 Sensor 1), along with the previous P0135 (H...
2004 Malibu LT Maxx V6 3.5L | P00302005 Pontiac Grand Prix P0030, P0036, P0201-P0206 and P0443 Fault Codes - Won't Start or Run
My 2005 Pontiac Grand Prix 3.8L engine will not start or run. It cranks over but does not ignite. Previously, the car ran smoothly with no hesitation or misfires, but it failed ...
2005 Pontiac Grand Prix | P00302003 VW Golf P0030 O2 Sensor Heater Circuit Fault Diagnosis and Solutions
I'm looking for help diagnosing a persistent P0030 code on my 2003 VW Golf. The code indicates a heated oxygen (O2) sensor heater circuit fault. I've checked the voltage at the...
2003 VW Golf | P00302006 Pathfinder P0030 Code: Misfire and Shaking at Idle - Diagnosis and Fixes
I own a 2006 Nissan Pathfinder and recently started experiencing severe shaking while idling, especially at traffic lights. The service engine light activated shortly after. I t...
Pathfinder | P00302013 Hyundai Elantra GLS 1.8L - Troubleshooting P0030, P0135, and P2118 OBD2 Fault Codes
I'm experiencing three OBD2 fault codes on my 2013 Hyundai Elantra GLS with a 1.8L engine: P0030, P0135, and P2118. I already understand what P0135 (O2 Sensor Heater Circuit Mal...
Elantra | P00302006 Ford Focus 1.6 Petrol Zetec OBD2 Codes P0030, P0037, P0050, P0057 - What Do These Lambda Sensor Faults Mean?
Hi everyone, I own a 2006 Ford Focus 1.6 petrol Zetec 5-door model. A few days ago, the engine warning light came on. I used an OBD2 code reader to clear the fault codes twice, ...
2006 Ford Focus | P00302006 Chevrolet Trailblazer OBD Code P0030 - Location of HO2S Heater Control Circuit Bank 1 Sensor 1
Where is the HO2S Heater Control Circuit Bank 1 Sensor 1 located on a 2006 Chevrolet Trailblazer? This fault code P0030 indicates an issue with the heater control circuit of the...
2006 chevrolet trailblazer | P00302001 Saturn L-Series 3.0L with P0030 and P0050 Codes: Poor Running, Bogging, and O2 Heater Issues
My 2001 Saturn L-Series 3.0L has started running poorly with the Check Engine Light on. The vehicle displays diagnostic codes P0030 and P0050, along with random misfire codes (i...
2001 Saturn L-series | P00302011 GMC Terrain P0030 P0050 P0102 P0178 P0443 Codes: Are These Related to a Single Underlying Issue?
My 2011 GMC Terrain is displaying multiple OBD2 fault codes: P0030, P0050, P0102, P0178, and P0440. I'm wondering if these codes are linked to a single underlying problem rather...
2011 GMC Terrain | P00302004 Malibu Maxx V6 3.5L P0030 and P0135 O2 Sensor Fault Diagnosis and Repair Guide
I own a 2004 Chevrolet Malibu Maxx with a 3.5L V6 engine (LX9) and automatic transmission. I'm currently experiencing trouble codes P0030 and P013-5. I have access to the factor...
2004 Malibu Maxx | P0030P0030 Diagnostic Issue on 2006 Toyota Highlander with 3.5L Engine
I own a 2006 Toyota Highlander equipped with a 3.5L engine. I recently replaced the spark plugs and temporarily disconnected the upstream oxygen sensor to test performance. Afte...
2006 Uplander | P00302007 BMW 525i P0030 O2 Sensor Bank 1 Sensor 1 Heater Circuit Malfunction - Fix & Diagnosis
Hello everyone, I'm seeking help with a recurring issue on my 2007 BMW 525i, which is no longer under warranty. Approximately two weeks ago, after the car had sat unused for ab...
2007 BMW 525i | P0030Subaru Forester 2003 P0030 and P003-30P Fault Code Explanation and Fix
We own a 2003 Subaru Forester with a 2.5L engine, automatic transmission, and currently at 105,000 kilometers with no modifications. The vehicle has shown reduced performance, e...
Subaru Forester | P0030'02 Kia Spectra P0030/P0134
Anyone have some input for this? Codes were P0030 & P0134 (Bank 1 Sensor 1 Inactivity / O2 heater circuit fault). So I changed the sensor and now get a P0031. (Heater circuit ...
Kia Spectra | P0030