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 2007 P0121 and P2135 Error Codes: Causes and Solutions After TPS and Throttle Actuator Replacement
I own a 2007 Ford Explorer with a 4.0L engine. I've been experiencing two persistent OBD2 error codes: P0121 and P2135. I recently replaced both the Throttle Position Sensor (TP...
Ford Explorer 2007 | P01212006 Ford Escape 3.0L with P0340 and P0106 Codes: Symptoms, Diagnosis, and Crankshaft Sensor Location
My 2006 Ford Escape 3.0L is running roughly with a loss of power. After replacing the camshaft position sensor (P0340 code) and clearing the codes, the vehicle still runs poorly...
06 Ford Escape 3.0 L | P01062005 Dodge Caravan U0155 and U110C: Lost Communication with Instrument Cluster and Fuel Gauge Issue
I recently had my 2005 Dodge Caravan scanned at Advance Auto Parts, and two OBD-II diagnostic codes were detected: U0155 and U110C. The U0155 code indicates lost communication w...
2005 Dodge Caravan | U01552005 Jeep Liberty 3.7L Engine OBD2 Code P0038: Oxygen Sensor 1/2 Heater Circuit High Location and Fix
My 2005 Jeep Liberty with a 3.7L engine is showing OBD2 diagnostic code P0038, which indicates 'Oxygen Sensor 1/2 Heater Circuit High'. I'm trying to locate the exact position o...
2005 Jeep Liberty | P00382001 Ford Focus 1.8 TDDI - Aký je príčinou chyby P0149?
Ako sa vyrieši chyba P0149 na vozidle Ford Focus 1.8 TDDI z roku 2001 s výkonom 66 kW? Motor funguje bez problémov pri behu a žiadne iné chyby nie sú zaznamenané. Hľadám informá...
2001 Ford Focus | P01491999 Ford Explorer P0171 and P0174 Codes: MAF Cleaned, Vacuum Check Complete, EGR Solenoid Still Shows Pulsating Vacuum at Idle
I recently cleaned the Mass Air Flow (MAF) sensor and performed a thorough vacuum leak check on the intake system—both tests came back negative. However, the vehicle continues t...
1999 Ford Explorer | P01711997 Chevrolet C1500 4.3L V6: P0147 and P0300 Codes - Diagnosis and Fixes
I own a 1997 Chevrolet C1500 with a 4.3L V6 engine. I've already replaced the spark plugs, wires, distributor cap, oxygen sensor (Bank 1, Sensor 3), and the catalytic converter....
97' 4.3L | P0147MK4 2.2L Engine Malfunction P0299 - Only Occurs on Cold Morning Hills
Hello, I'm experiencing a specific issue with my 2008 MK4 2.2L 175 HP Ford vehicle. When the engine is cold—typically in the morning—I notice the 'Engine Malfunction' warning l...
MK4 2.2 | P0299P0087 OBD2 Code in 2008 Pontiac Solstice GXP: Fuel Pressure and Sensor Diagnosis
I'm experiencing a P0087 diagnostic trouble code on my 2008 Pontiac Solstice GXP. I've manually tested the fuel rail pressure and obtained readings within the normal or high ran...
Pontiac Solstice | P0087P1762 Fault in 2001 Jeep Grand Cherokee 4.0L 6-Cylinder - Diagnosis and Repair Help
I own a 2001 Jeep Grand Cherokee with a 4.0L 6-cylinder engine. After cleaning the engine block, I received a diagnostic code P1762 during startup. The vehicle will not shift pr...
jeep grand cherokee | P17622001 Chrysler Concorde P1495 Leak Detection Pump Solenoid Issue and Power Brake Problem
I'm experiencing fault code P1495 on my 2001 Chrysler Concorde, which indicates a 'Leak Detection Pump Solenoid Circuit' issue. In addition to this, I have a noticeable power br...
2001 Chrysler Concorde | P14952002 Ford Taurus 3.0L Engine P0302 Code: Intermittent Misfire in Cylinder 2 - Diagnosis and Solutions
The issue began Wednesday morning. The vehicle ran smoothly the previous night but started running poorly upon startup on Wednesday morning, with the check engine light illumina...
2002 Ford Taurus 3.0 | P03022004 Ram 1500 5.7L Engine - How to Diagnose and Fix P0441 Evaporative Emission System Issue Without Replacing Entire System
The P0441 trouble code indicates a problem within the evaporative (EVAP) system. This code covers multiple potential faults, making it challenging to pinpoint the exact issue wi...
2004 Ram 1500 | P04412003 Infiniti Q35 P0340 Fault: Camshaft Position Sensor Circuit Malfunction - Diagnosis and Fix
I own a 2003 Infiniti Q35 and am experiencing a recurring OBD2 fault code P0340, indicating a 'Camshaft Position Sensor Circuit Malfunction'. I replaced both camshaft position s...
2003 Infiniti F35 | P0340Nissan Cube Z11 - A/F Alpha B1 Reading at 90-100%: What Does This Mean for Engine Health?
What is the expected A/F Alpha value for a healthy Nissan Cube Z11 engine? The vehicle was initially brought in with a no-start condition. A visual inspection of the spark plugs...
Nissan Cube Z11 | P21772005 PT Cruiser P0605, P0700, and P1391 Error Codes Explained - After Catalyst Replacement
I recently installed a new catalytic converter on my 2005 PT Cruiser to pass smog inspection, but the engine light has come back on. The check engine light is now active with er...
PT Cruiser | P0605Practical 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.