392102A800 Hyundai / KIA SENSOR-DIFF.PRESSURE, Price: 51.84$, Weight: 0.05kg

Exhaust Differential Pressure Sensor (DPF / EGR Monitoring)

This sensor is a key feedback part for modern Hyundai & Kia diesel exhaust systems. It measures the pressure difference between two points in the exhaust (usually before and after the DPF). The ECU uses this signal to calculate soot load and decide when to start regeneration. Without correct readings, the engine cannot manage emissions properly and fuel economy can suffer.

How It Works ⚙️

The unit connects to the exhaust via two small pressure hoses. Inside, a precise diaphragm and electronics convert pressure drop into a voltage signal. Higher restriction in the filter = higher differential pressure, so the ECU can protect the turbo, control EGR flow, and keep the DPF clean.

If the Sensor Fails ❗

A faulty sensor or cracked hoses can trigger warning lights, limp mode, and frequent/failed regenerations. In bad cases the DPF may clog, exhaust backpressure rises, turbo stress increases, and the vehicle may smoke more or lose power. Replacing it in time helps avoid expensive DPF and turbo repairs.

Common Symptoms

• Engine light / DPF light on
• Weak acceleration, limp-home mode
• High fuel consumption, harsh regen cycles
• Fault codes related to differential pressure / DPF load

Compatibility ✅

• Ix35 10
• Ix35 14
• Ix35/Tucson 10
• Ix35/Tucson 11
• Ix35/Tucson 14
• I30/I30Cw 07
• I30/I30Cw 09
• I30 12
• Ix20 11
• I20 08
• I20 10
• I20 12
• I40 12
• Accent
• Accent 11
• Avante
• Elantra 14
• Tucson
• Santa Fe
• Santa Fe 10
• Santa Fe 12
• Grand Santa Fe 13
• Ix55 07
• Veracruz
• Veracruz 07
• Maxcruz
• Porter Ii
• H-1 07
• H-1 15
• H-1 18
• H-1/Grand Starex 15
• H-1/Grand Starex 18
• Grand Starex
• H-100 04
• H-100 17
• H-100 20