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2005 F-150 5.4L Open Loop misfire
2005 F-150 5.4L w/180k miles: Symptoms: At EVERY cold start it will misfire until warmed or settles down in closed loop. When it does throw codes, I get vaying combinations of P...
2005 F-150 5.4L | P03002014 VW Jetta Cylinder Misfire: OBD Codes, Check Engine Light, and Repair Steps
I'm currently driving a 2014 Volkswagen Jetta and recently experienced multiple cylinder misfires. A few weeks ago, the issue appeared intermittently, and after replacing the sp...
2014 Jetta | P0300P0301 and P0497 OBD2 Codes in 2009 Honda Pilot 3.5L V6: Fix with Intake Hose Replacement?
My 2009 Honda Pilot EX with a 3.5L V6 SOHC 24-valve V-Tech engine is showing OBD2 diagnostic codes P0301 (Cylinder 1 Misfire) and P0497 (Evaporative Emission System Malfunction)...
83-1 | P03012015 Chevy Spark P0301 Cylinder 1 Misfire: Diagnosis and Repair Help Needed
ERROR CODE: P0301 I own a 2015 Chevrolet Spark and have been experiencing a persistent cylinder 1 misfire indicated by the OBD2 fault code P0301. I've already attempted repairs...
2015 Chevy Spark | P03012006 Pontiac G6 3.9L with DTCs P0056, P0060, P0161, P0301 and B2AAA - O2 Sensor & Misfire Diagnosis
Hello! I'm new to this forum and appreciate the community support. I recently purchased a 2006 Pontiac G6 3.9L with known repair needs. The vehicle is currently displaying mult...
Pontiac G6 GTP | P00562001 Mazda MPV P0301, P0102, P0113, P0300, P0122, P0108 - Check Engine Light & Sputtering Fix Help
I recently replaced the MAF sensor, coil pack, ignition switch, and throttle position sensor on my 2001 Mazda MPV. Despite these upgrades, the vehicle continues to sputter, exhi...
2001 Mazda MPV | P01021998 Jeep Wrangler 4.0L P0301 Cylinder 1 Misfire & P0123 Code - Diagnosis and Fixes
I own a 1998 Jeep TJ with a 4.0L engine and have been experiencing a persistent P0301 code indicating a cylinder 1 misfire for over four years. I've already replaced spark plugs...
98 Jeep Wrangler | P01232003 VW Passat Wagon V6 Fault Codes P0300-P0306 and P1491/P1492: Diagnosis and Repair Cost Guide
My 2003 VW Passat Wagon with a V6 engine has been showing intermittent check engine light activation, accompanied by fault codes P0300 through P0306 (indicating random misfires)...
2003 VW Passat Wagon V6 | P03002008 Ford F150 4.6L Engine P0301 Misfire: Coil Pack Replacement Failed, Code Reappears
The vehicle is a 2008 Ford F150 with a 4.6L V8 engine. I recently received a Diagnostic Trouble Code (DTC) P0301 indicating a cylinder 1 misfire. I replaced the coil pack, and i...
2008 Ford F150 | P03012006 Chevrolet Impala 3.9L Engine P0301 Misfire: Diagnosis & Solutions
My 2006 Chevrolet Impala LTZ with a 3.9L engine is experiencing intermittent hesitation and sputtering during acceleration. The vehicle has triggered a P0301 diagnostic code ind...
2006 Chevrolet Impala | P03012008 Dodge Avenger 2.4L P0301 Misfire: Diagnosis and Budget-Friendly Fixes
I own a 2008 Dodge Avenger with a 2.4L engine. About two weeks ago, my wife noticed the vehicle began lurching while driving home. We took it to an auto shop where they replaced...
2008 Dodge Avenger | P03012003 Ford Crown Vic P71 with P0301 and P0316 Codes: Misfire, Flashing Check Engine Light at 50 mph, Power Loss
I own a 2003 Ford Crown Victoria Police Interceptor with 154,000 miles. The vehicle is showing Diagnostic Trouble Codes P0301 and P0316. I've already replaced the spark plugs an...
03 Crown Vic | P03012002 Ford F-150 4.6L V8: Multiple Spark Coil Faults (P0354, P0355, P0356, P0358) with Random Cylinder Misfires
Vehicle: 2002 Ford F-150, 4.6L Triton V8 engine Issue: Recently experienced four OBD-II fault codes simultaneously: P0354, P0355, P0356, and P0358. The engine lost power under l...
2002 F-150 4.6L | P0300P0301 Cylinder 1 Misfire Detected - Diagnosis and Solutions for 2000 Ford Taurus
I recently replaced the spark plugs and ignition wires on my 2000 Ford Taurus, but the P0301 cylinder 1 misfire code persists. The engine does not show any rough idle or dead mi...
2000 Taurus | P03012003 VW Passat P0171 P0300 P0301 P302 P304 P411 - Hesitation at 20-30 mph and Misfire Codes After Recent Repairs
My mother drives a 2003 VW Passat 1.8L 4-cylinder model, which is currently displaying multiple OBD-II diagnostic codes: P0171 (Rich or Lean Fuel Mix), P0300 (Random/Multiple Cy...
2003 VW Passat | P0171P0300 and P0128 Fault Codes - 2002 GMC Silverado 4.3L V6 Diagnosis
The vehicle is displaying fault codes P0300 (Random Misfire) and P0128 (Coolant Temperature Sensor Circuit Malfunction). For the random misfire (P0300), inspect spark plugs for ...
2002 Silverado | P03002008 Hyundai Tiburon GS 2.0L OBD II Codes P0170, P0171, P0300, P0301, P0302, P0303 - Engine Hesitation Diagnosis
Hi, I own a 2008 Hyundai Tiburon GS with a 2.0L engine. Recently, my car has been displaying several OBD II diagnostic codes: P0170, P0171, P0300, P0301, P0302, and P0303. After...
2008 hyundai tiburon gs 2.0 | P01702005 Ford F150 Cold Start Misfire & Lean Codes: PO171, PO174, PO302 Fix Guide
I own a 2005 Ford F150 with a 5.4L V8 engine and 150,000 miles. Over the past month, I've experienced recurring cold-start misfires that only resolve after the engine warms up. ...
2005 Ford F150 | P03002005 Ford Taurus 3.0L P0301 and P0456: Rough Idle, Poor Acceleration, and Misfire Diagnosis
Hi everyone, I'm new to this forum and really appreciate the community's help. I own a 2005 Ford Taurus with 150,000 miles. About 3,000 miles ago, I replaced the spark plugs, d...
2005 Taurus | P03012010 Silverado 1500 P0301 Misfire Diagnosis: Causes and Solutions
I own a 2010 Chevrolet Silverado 1500 with the 5.3L V8 engine that has triggered a P0301 diagnostic code indicating a misfire in cylinder 1. The only noticeable symptom is an in...
2010 Silverado | P0301