Traditional gasoline car fault

2015 Ford F250 DPF Issue: P00BC and P0402 Codes Persist After Professional Cleaning

I recently had all three DPF components professionally cleaned. After reinstallation, the OBD2 scanner still shows two persistent fault codes: P00BC and P0402. Despite the clean...

F250 | P0402

2008 Ford Escape 3.0L Engine P0402 Code: Diagnosis and Solutions After Replacing DPFE, EGR, and Throttle Body

I'm experiencing a persistent P0402 diagnostic trouble code on my 2008 Ford Escape with the 3.0L engine. I've already replaced the Diesel Particulate Filter Efficiency (DPFE) se...

2008 Ford Escape | P0402

94 Mercury Cougar with P0102, P0153, P0402, P1132, P1152, P0302, P0306, P-171, and P0175 - Diagnosis and Fixes

I'm experiencing multiple OBD-II diagnostic codes on my 1994 Mercury Cougar: P0102 (Manifold Absolute Pressure Sensor Range/Performance), P0153 (Oxygen Sensor Bank 1 Sensor 2 Ma...

94 Mercury Cougar | P0102

P0402 Fault in 1994 Ford Mustang 3.8L After Head Gasket Repair

I own a 1994 Ford Mustang with a 3.8L engine. Recently, I performed a head gasket replacement and reassembled the vehicle. Since then, I've noticed a significant loss of gas ped...

1994 ford Mustang 3.8L | P0402

Audi A6 C6 TDI 发现 P0402、P0101 和 P0299 故障码，行驶中动力下降且油耗异常

您好，我有一辆奥迪A6 C6 Avant 2.0TDI车型。目前车辆出现多个发动机故障码：EGR系统流量过大（P0402），间歇性触发；节气门位置传感器G70信号异常（P0101）导致进气量读数不可靠；同时检测到增压压力调节控制范围未达到（P0299），且该故障码也呈间歇性出现。驾驶过程中，点火线圈警告灯会闪烁，车辆在行驶中动力明显下降，必须切换至手动...

Audi A6 c6 TDI | P0101

1996 Acura TL P0402 - EGR Excessive Air Flow Diagnosis and Solutions

Fault code P0402 in a 1996 Acura TL indicates an excessive airflow issue within the Exhaust Gas Recirculation (EGR) system. While many users report P0401 (restrictive airflow), ...

96 ACURA TL | P0402

2002 Volkswagen Golf Variant P0402 Code: Exhaust Gas Recirculation Flow Excessive - Diagnosis and Fix

Hi, I'm experiencing a persistent OBD-II fault code P0402 on my 2002 Volkswagen Golf Variant (1.6L gasoline engine). The code reads: "Exhaust Gas Recirculation (EGR) Flow Exces...

2002 Golf | P0402

How to Fix P0402 and P0101 Codes in 2011 Jeep Grand Cherokee CRD

I own a 2011 MY12 Jeep Grand Cherokee CRD and am currently experiencing diagnostic trouble codes P0402 and P0101. Can anyone provide guidance on how to diagnose and resolve thes...

Grand Cherokee | P0101

1996 Toyota Tercel P0401 and P0402 Fault: EGR System Issues and Diagnosis

I own a 1996 Toyota Tercel with a 1.5L EFI DOHC 4-cylinder engine. The vehicle recently triggered the check engine light, displaying fault codes P0401 and P0402. While driving, ...

1996 Toyota Tercel | P0401

P0402 Fault on 2001 Ford Expedition 4.6L: Causes, Fixes & Diagnostics

I'm experiencing a persistent P0402 diagnostic trouble code (DTC) on my 2001 Ford Expedition with the 4.6L V8 engine. After replacing the EGR valve, throttle position sensor, DP...

2001 Ford Expedition 4.6L | P0402

Mazda BT50 Turbo Diesel 2007 P0402 P0404 P2263 Fault Diagnosis and EGR Sensor Issues

I own a 2007 Mazda BT50 Turbo Diesel with 70,000 miles. After scanning the vehicle, I found three persistent fault codes: P0402 (EGR excessive flow at idle), P0403 (#2 EGR solen...

MAZDA BT50/FORD RANGER | P0402

1997 Ford Explorer 5.0 Engine P0406 DTC: EGR Excessive Flow Issue Without DPFE Sensor

I own a 1997 Ford Explorer 5.0 with a persistent P0402 diagnostic trouble code indicating excessive EGR flow. I've confirmed the EGR valve is functioning properly—when manually ...

97 Explorer 5.0 | P0402

1996 Ford Taurus V6 P0402 Code: Rough Idle, Hesitation - Causes & Fixes

Hi everyone, I just brought home my 1996 Ford Taurus with a V6 engine and pulled up the diagnostic code P0402. The car is exhibiting rough idle and hesitation during driving. Af...

1996 Ford Taurus | P0402

97 Ford Contour P0401 and P0402: Are These Codes Contradicting? What's Really Causing It?

I'm seeing two conflicting diagnostic codes on my 1997 Ford Contour: P0401 (EGR flow insufficient) and P0402 (EGR flow excessive). According to my OBD2 scanner, these codes appe...

97 ford contour | P0401

1997 Ford Contour Starting Issue After Warm-Up: P0402 EGR Flow Excessive Detected

My 1997 Ford Contour starts easily when cold, but once the engine warms up and I turn it off, it cranks but fails to start. The only fault code detected is P0402 — indicating ex...

97 ford contour | P0402

How to Fix P0401 and P0402 Fault Codes on a 1999 Toyota Solara (98,000 Miles)

I need help diagnosing and fixing fault codes P0401 and P0402 on my 1999 Toyota Solara with 98,000 miles. These codes indicate insufficient and excessive exhaust gas flow, respe...

Toyota Solara | P0401