Traditional gasoline car fault
Search fault code and browse forum case posts.
This page is designed for quick diagnosis on gasoline vehicles by combining code lookup with real discussion cases. Enter a fault code to filter related topics, then compare symptom context such as cold start behavior, acceleration load, fuel-trim deviation, ignition misfire pattern, and recent maintenance history. Many codes can be triggered by shared root causes, so use cross-checks from multiple posts before replacing sensors, coils, injectors, or catalytic components.
Ford Explorer P0174 Fault Code: What Parts to Replace and How to Fix
I have a Ford Expedition and my OBD2 scanner detected fault code P0174. This code indicates a lean mixture in bank 2 of the engine. Can someone please advise which part I should...
ford | P01742000 Volvo S70 Check Engine Light On: Fault Codes P1672 and P1670 Explained
My 2000 Volvo S70 has recently started having difficulty starting. It will sometimes start on the first attempt, but other times it will repeatedly crank and then immediately sh...
2000 Volvo S70 | P1670P0507 Diagnostic and Fix for 2005 Chrysler PT Cruiser GT
Seeking help to resolve the P0507 diagnostic code on my 2005 Chrysler PT Cruiser GT. The vehicle is experiencing an engine idle RPM issue, which may be related to the throttle p...
2005 Chrysler PT Cruiser GT | P0507Vauxhall Astra 1.6 8v 2002 - P0230 Fault Code: Car Dies After 15-20 Minutes, Fuel Pump Relay Replacement Failed
A few weeks ago, my Vauxhall Astra 1.6 8v (2002 model) suddenly died while I was driving, as if the ignition had been turned off. I managed to park and wait for a friend before ...
Vauxhall Astra 1.6 8v 2002 | P02302003 silhouette 3.4l P0101 125,000 miles
Vehicle stalls and is very hard to start. Clear code and vehicle starts and runs fine. After about 40 miles same thing. Replace MAF & Map? any ideas
2003 Silhouette | P01012000 Kia Sephia P0713, P0740, P1624 Fault Codes: Meaning and Repair Guidance
I own a 2000 Kia Sephia with approximately 116,000 miles. The check engine light has activated, and the vehicle is displaying fault codes P0713, P00740, and P1624. I would like ...
kia sephia 2000 | P0713P0157 on Toyota Sienna
P0157 code on an otherwise well running 2011 Toyota Sienna w/ 76K; replaced rear O2 sensor and erased the code. after one week and a tank of gas the code has returned. I repla...
Toyota Sienna | P01572003 Dodge Grand Caravan 3.3L Engine P0205 Code: Diagnosis and Repair Steps
I own a 2003 Dodge Grand Caravan Sport with a 3.3L 6-cylinder engine. Recently, the vehicle began running with hesitation and triggered a persistent P0205 diagnostic trouble cod...
2003 Dodge Grand Caravan | P02052006 PT Cruiser P0303 Misfire Cylinder 3 - Persistent Code After Multiple Repairs
2006 PT Cruiser Touring 2.4L 4-cylinder (non-turbo) | 100,000 miles I'm experiencing a persistent P0303 misfire on cylinder 3 that continues despite extensive repairs. I've al...
2006 PT Cruiser | P03032007 Ford Fusion 2.3L with Code P0757: How to Locate the B Shift Solenoid in A6R5 Transmission
I need help locating the B Shift Solenoid on a 2007 Ford Fusion equipped with a 2.3L engine and an A6R5 transmission. The vehicle is displaying Diagnostic Trouble Code P0757, wh...
2007 Ford Fusion | P07571999 Ford F-150 OBD2 Codes P0171 and P0174: Diagnosis and Fixes
I'm experiencing OBD2 diagnostic codes P0171 and P0174 on my 1999 Ford F-150. These are engine lean mixture codes, indicating the air-fuel ratio is too lean in both the left and...
99 Ford F150 | P017102 Dodge Ram 1500 Failed PCM Cause? P0601
Hi there.. a newbie here so please forgive if I'm not giving all information i need. I also apologize for this long post, but I'm hoping it may all be related. I have a 2002...
02 Dodge Ram 1500 | P06012001 Chrysler Town & Country 3.8L: P0203 Fuel Injector Code - Diagnosis and Fixes
I own a 2001 Chrysler Town & Country van with a 3.8L engine. It recently triggered a P0203 diagnostic code, indicating an issue with fuel injector #3. I replaced the fuel inject...
2001 Chrysler | P02031999 Pontiac Montana P0327 Code: Knock Sensor Issue Still Persisting After Replacement
My 1999 Pontiac Montana is throwing a P0327 diagnostic trouble code, which indicates a problem with the knock sensor. I recently replaced the knock sensor—this was the second re...
99 Pontiac Montana | P0327P0171 & P0174 Diagnostic for 2001 Ford F150: Lean Codes, High IAT, and Acceleration Issues
This morning I checked my diagnostic trouble codes (DTCs) after noticing my 2001 Ford F15-0 was running sluggishly the previous day. The scan tool revealed both P0171 and P0174,...
2001 F150 | P01711998 Plymouth Grand Voyager P0135 O2 Sensor Fault: Causes, Testing & Solutions
Vehicle: 1998 Plymouth Grand Voyager, 3.3L engine, mileage over 437,000 miles (VIN: 2P4GP44R2WR686191) I recently replaced the oxygen sensor for a vehicle inspection. I install...
98 Plymouth GrandVoyager | P0135Jeep Grand Cherokee 4.0L Engine P0138 Code: Can I Bypass Catalytic Converter with Straight Pipe Without Triggering Check Engine Light?
I own a 1998 Jeep Grand Cherokee equipped with a 4.0L inline-6 engine. While troubleshooting a broken valve spring, I had the catalytic converter removed and replaced with a str...
Jeep 4.0 | P01382006 Nissan Sentra 1.8L Engine P0133 Error: Air Fuel Ratio Sensor Bank 1 Slow Response
I own a 2006 Nissan Sentra with a 1.8L 4-cylinder engine, automatic transmission, and approximately 160,000 miles. Today, I received the diagnostic error code P0133, which reads...
2006 Nissan Sentra | P0133P0305 Fault Code Diagnosis - 2008 Jeep Liberty 3.7L V6 | Freeze Frame Data Analysis
Good morning, I'm working on a persistent P0305 misfire issue in my 2008 Jeep Liberty with the 3.7L V6 engine. I've been troubleshooting this for over two weeks and have comple...
Jeep Liberty | P0305Oxygen Sensor Issue with P1133 Code in 2003 Isuzu Rodeo 6-Cylinder
I recently replaced the oxygen sensor for Bank 1 Sensor 1 (right side) on my 2003 Isuzu Rodeo 6-cylinder model, but the P1133 fault code has persisted after 2 to 3 months. The c...
Isuzu Rodeo | P1133Practical workflow for fault-code troubleshooting
Start by confirming battery voltage and reading freeze-frame data, then inspect wiring and connectors before replacing parts. If the code returns after clearing, record the exact driving or idling condition when it reappears. Prefer case threads with complete repair feedback, because confirmed outcomes provide stronger guidance than one-time symptom descriptions. Following a step-by-step workflow reduces repeated repairs and lowers total diagnosis time.