Traditional gasoline car fault

2004 Ford F350 6.0L Diesel P0404 and P0405 EGR Fault - After Rebuilding Engine

Hello, I recently rebuilt the 6.0L diesel engine in my 2004 Ford F350. The fault codes P0404 and P0405 are related to the Exhaust Gas Recirculation (EGR) system. One component...

F350 | P0404

2002 Silverado 2500HD 6.0 Vortec Gas Engine: Replaced Two New EGRs but Still Shows P0404 Code

I own a 2002 GMC Silverado 2500HD with a 6.0L Vortec gasoline engine. After the check engine light triggered a P0404 code, I replaced the EGR valve once—still no improvement. Th...

2 | P0404

2002 Impala 3.4L V6 No Start After Replacing EGR Valve with P0404 Code

Hello, I own a 2002 Chevrolet Impala with a 3.4L V6 engine. I recently replaced the EGR valve due to a check engine light triggered by code P0404 (Exhaust Gas Recirculation Syst...

2002 impala | P0404

2004 Buick Lesabre P0101 and P0404: Stalls After Restart, MAF Sensor Issues

My 2004 Buick Lesabre 3.8L engine died while driving on the highway. It was towed home and I connected a MODIS scanner. The vehicle initially showed P0101 (Mass Airflow Sensor R...

2004 Buick Lesabre | P0101

2009 Jeep Wrangler 3.8L V6 P0404 Code: Intermittent Check Engine Light and EGR Valve Diagnosis

I own a 2009 Jeep Wrangler with a 3.8L V6 engine. The check engine light came on initially without any noticeable engine performance issues. A diagnostic scan revealed the P0404...

2009 Jeep Wrangler | P0404

Chevy Matiz 800 P0404 and P0401 Error Codes: Diagnosis and Fixes

Hello everyone, I'm Emilio from Italy and I recently encountered a recurring issue with my Chevrolet Matiz 800. The check engine light turned on, and after taking the car to a m...

Chevy Matiz 800 | P0401

P0300 and P0404 Codes in 2004 Pontiac Grand Am: Rough Idle, No Power Loss - Diagnosis Tips

I own a 2004 Pontiac Grand Am that is displaying both P0300 (Random Misfire) and P0404 (Insufficient Exhaust Gas Recirculation) diagnostic codes. After researching similar issue...

2004 Pontiac Grand Am | P0300

P0404 OBD2 Fault Code on 2003 Pontiac Grand Prix 3.1L Engine - Diagnosis and Solutions

I'm experiencing a P0404 diagnostic trouble code on my 2003 Pontiac Grand Prix equipped with the 3.1L engine. Despite replacing the spark plugs, ignition wires, EGR valve, and m...

Pontiac Grand Prix | P0404

2003 Chevrolet Malibu P0440, P0404, and P1404 Codes - Inspection Failure After EGR and Catalytic Converter Replacement

I'm trying to get my 2003 Chevrolet Malibu to pass emissions inspection. The vehicle is showing trouble codes P0440, P0404, and P1404. We have already replaced both the EGR valv...

2003 Malibu | P0404

2003 GMC Sierra 2500 Duramax: P0089, P0380, P0404, P0802, P1093, U2106 - Battery Not Charging Issue Explained

Hello, I'm new to this forum and am seeking help diagnosing an issue on my 2003 GMC Sierra 2500 Duramax with Allison transmission. The instrument panel displays the message 'ba...

2003 Sierra 2500 | P0089

Jeep Grand Cherokee 2006 P0404 Fault Code: EGR Issues and Flash Update Solution

Hello, we own a 2006 Jeep Grand Cherokee with a 5.7L V8 engine. The vehicle consistently displays fault code P0404, indicating a malfunction in the Exhaust Gas Recirculation (EG...

jeep grand cherokee 2006 | P0404

Chrysler Town & Country 2009 P0404 and P0406 Error After EGR Valve Replacement

After replacing the EGR valve, the engine warning light initially disappeared. However, after driving approximately 2,000 km, the vehicle returned with DTCs P0404 (Exhaust Gas R...

EGR valve replaced | P0404

2007 Dodge Caravan P0404 Error Code: Causes and Reset Procedures After Repair

My 2007 Dodge Caravan recently developed a P040-4 error code after previously having three other trouble codes—305, 420, and 120. I took the vehicle to a mechanic who performed ...

2007 Dodge Caravan | P0404

2005 Chrysler Pacifica P0706 and P0404: Transmission Stalls on Hills, Won't Shift Smoothly

I own a 2005 Chrysler Pacifica with an automatic transmission. The vehicle runs normally on flat surfaces and at steady speeds. However, when driving uphill, the transmission un...

2005 Chrysler Pacifica | P0404

98 S10 4.3L Engine P0101 and P0406 Codes: Causes and Fixes for Poor Throttle Response

I'm experiencing both P0101 (Mass Airflow Sensor Circuit Range/Performance) and P0404 (Catalyst System Efficiency Below Threshold) codes on my 1998 S10 with a 4.3L V6 engine. Th...

98 S10 | P0101

2010 Chrysler 3.8L Engine P0404 Code: EGR Issues and MAP Sensor Influence

I recently replaced the EGR valve and cleaned the EGR tube, but the P0404 code returned. I then removed the EGR to check if it was stuck open—no issue found. Could the MAP (Mani...

2010 Chrysler | P0404

2007 Chrysler Pacifica 3.8L P0404 Code: Diagnosis and Possible Causes - EGR Circuit Issues

I own a 2007 Chrysler Pacifica with a 3.8L engine and approximately 178,000 miles. About a month ago, I began noticing reduced horsepower, sluggish acceleration, and hesitation ...

2007 Chrysler Pacifica | P0404

Jeep Grand Cherokee WK 2005 P0404, P0031, P0036, P0051, P0057 - Troubleshooting and Solutions

Good evening, I'm experiencing issues with my 2005 Jeep Grand Cherokee WK. Occasionally, especially when the air conditioning is on, the vehicle seems to lose power — the engine...

Jeep Grand Cherokee WK | P0031

2002 Saturn SL2 P0404 and P0405 Codes - How to Complete Drive Cycle for Smog Check

I'm currently going through the vehicle registration process in California, but during the mandatory smog check, my 2002 Saturn SL2 triggered two diagnostic trouble codes: P0404...

Saturn SL2 | P0404