Traditional gasoline car fault

2003 Hyundai Tiburon 2.7L V6 P0300/P0301/P0303/P0305 Fault - Right Bank Cylinder Misfire with Supercharged Roots Blower Kit

Hello, I'm looking for advice on diagnosing recurring misfire codes P0300, P0301, P0303, and P0305 on my 2003 Hyundai Tiburon 2.7L V6 with a supercharged Roots blower kit. The ...

Hyundai Tiburon | P0300

2005 Neon Missfire Code P0304 - After Replacing Plugs, Wires, Injector, and Coil Pack

I own a 2005 Neon with 44,000 miles that consistently shows a misfire on cylinder 4 (P0304). I've already replaced the spark plugs, ignition wires, fuel injector, and coil pack....

neon | P0300

1996 Pontiac Sunfire P0300 and P0172: Multiple Cylinder Misfire and System Too Rich Diagnosis

I'm experiencing both P0300 (Multiple Random Cylinder Misfire) and P0172 (System Too Rich) on my 1996 Pontiac Sunfire. The check engine light came on, and after a diagnostic sca...

96 Pontiac Sunfire | P0172

P0300 Misfire Diagnosis on 1996 Chevrolet Corsica After 3400 Engine Swap

I recently performed an engine swap, installing a 3400 engine into my 1996 Chevrolet Corsica, which originally had a 3100 engine. The vehicle previously experienced a cylinder 6...

corsica | P0300

2001 Ram 0300, 0306, 0308 Diagnostic Help - Multiple Cylinder Misfire Codes

I'm experiencing persistent misfire codes (0300, 0306, 0308) on my 2001 Ram. I've already replaced the spark plugs and ignition cables, as well as the distributor cap, but the i...

01 RAM | P0300

96 Dodge Ram 1500 V8 5.2L Multiple Cylinder Misfires - Fuel System & Ignition Diagnostics

My 1996 Dodge Ram 1500 with a 5.2L V8 engine is experiencing multiple cylinder misfires across all eight cylinders. I've already replaced the spark plugs, ignition wires, distri...

96 Dodge Ram 1500 | P0300

Honda Civic 98 OBD P1399 P0335 P0301 P0300 - Stalls at 3000 RPM, Poor Idle, Fuel Pump Failure Suspected

I own a 1998 Honda Civic 1.8L automatic model that suddenly starts jumping at 3000 RPM and fails to accelerate beyond that point. The engine barely idles, which raises concerns ...

honda civic 98 | P0300

1999 Chevy Silverado P0101, P0137, P0157, P0300 Troubleshooting - Engine Stalls & Loss of Power

Hi everyone! I'm looking for help with my 1999 Chevrolet Silverado 5.3L fuel-injected, automatic, 2-wheel-drive truck (130,000 miles). The vehicle occasionally stalls during mor...

1999 Chevy Silverado | P0101

1999 Dodge Durango 5.2L Engine Misfires: P0300, P0302, P0304 Codes at 150,000 Miles

The vehicle idles slightly rough but runs smoothly under normal conditions. I reset the engine codes and drove it for a full week without any issues. However, yesterday after dr...

1999 Durango | P0300

Chevy Astro PO300 Missfire at 142k Miles - Intake Gasket Replacement Still Shows Code

I'm back with an update. After replacing the intake gasket, I discovered a crack at cylinder #1. To provide context: I've already replaced the spark plug cap, rotor, plugs, wire...

Chevy Astro | P0300

P0300 and P0742 Diagnosis: 2000 Chevrolet Cavalier with Automatic Transmission and 74,000 Miles

I own a 2000 Chevrolet Cavalier (2.2L engine, automatic transmission, 74,000 miles) and recently experienced a check engine light. A diagnostic scan revealed two fault codes: P0...

chevy cavalier | P0300

1999 Chevrolet Silverado 1500 4.8L Engine Idle Jumps with Codes P0101, P0121, P0300, and P0507

I have a 1999 Chevrolet Silverado 1500 with a 4.8L V8 engine experiencing severe idle instability—engine RPMs jump up and down constantly. The check engine light is on, and I've...

99 silverado | P0101

P0300 Fault on 2003 Chevrolet Silverado 5.3L with Random Misfires in Cylinders 1,3,5,7

My 2003 Chevrolet Silverado 5.3L engine is showing a P0300 random misfire code when under hard acceleration above 3000 RPM. The check engine light flashes during high-load drivi...

03 Silverado 5.3L | P0300

1997 GMC K1500 5.0L Random Misfire (P0300) - Lean Condition, High IAC, All Components Replaced

I own a 1997 GMC K1500 with a 5.0L V8 engine and 4x4 drivetrain. The vehicle has been modified only with a cold air intake system (dry cotton filter). Recently, it's consistentl...

1997 | P0300

Chevy Astro P0300 Misfire Diagnosis: EGR Valve and Intake Gasket Considerations

I recently removed the left bank upstream oxygen sensor, but the issue persists—once the engine reaches idle around 600 RPM, cylinder #1 begins misfiring. I previously inspected...

Chevy Astro | P0300

PO300 Fault in 1996 Chevy Blazer 4x4 with 126K Miles - Heater Core or Engine Misfire?

Hello! We've been detecting a strong engine coolant odor in the passenger cabin, which has led us to suspect a failing heater core. However, we have not observed any visible flu...

1996 Chevy Blazer 4 x 4 | P0300