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Hella Exhaust Pressure Sensor - 6PP009409-361

Hella Exhaust Pressure Sensor - 6PP009409-361

The Hella Exhaust Pressure Sensor is a high-quality replacement component designed for accurate pe...

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HELLA 6PP 009 409-361 Sensor, exhaust pressure - 3-pin connector - Bolted

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Product Information

Full details

The Hella Exhaust Pressure Sensor (6PP009409-361) is an essential diagnostic component designed for automotive technicians and DIY mechanics performing emissions system repairs. It provides critical, high-precision monitoring of exhaust pressure levels before the diesel particulate filter (DPF), ensuring optimal engine performance and compliance with emission standards. While it offers robust build quality and broad compatibility across multiple manufacturers, it requires professional installation knowledge to ensure correct integration with the vehicle's electronic control unit.

All features

Model Part Number6PP009409-361
BrandHella

Extended Product Information

FAQs

Does this sensor come with mounting hardware?

The sensor features a bolted mounting type, but you should reuse your vehicle's existing mounting hardware if it is in good condition.

Is this a direct fit for Mazda diesel engines?

Yes, it is compatible with Mazda OEM part SH01-18-2B2, among others.

Can I install this without a diagnostic computer?

While the physical installation can be done manually, it is strongly advised to use a diagnostic computer to clear the error codes and recalibrate the sensor with the ECU.

What are the port sizes on this sensor?

The sensor features two ports with diameters of 8mm and 6mm.

Why is the sensor located before the soot filter?

The sensor measures back-pressure before the filter to calculate the soot accumulation level; this data tells the car when it is time to burn off the trapped particulate matter.

Troubleshooting

Dashboard DPF warning light remains on after replacement

Use an OBD-II scan tool to perform an ECU reset or initiate a forced regeneration cycle to clear the fault memory.

Irregular idling or engine hesitation

Verify that the sensor harness is fully seated and that the vacuum lines connected to the 8mm/6mm ports are free of cracks or leaks.

Pros and Cons

Pros

  • High-precision sensor output
  • Broad compatibility with major vehicle brands
  • Robust construction for harsh under-car conditions
  • Direct OEM replacement specifications

Cons

  • Requires professional installation for calibration
  • Location makes access difficult on some vehicle models
  • Requires vehicle-specific computer reset after replacement

Setup, Compatibility & Care

Installation should only be performed by qualified personnel. To set up, locate the sensor upstream of the soot particulate filter and verify the harness connection. Compatibility includes OEM references such as 1865A210, SH01-18-2B2, and 1609942680. Use the bolted mounting points to secure the unit firmly. It is highly recommended to perform a scan-tool diagnostic reset after installation to clear any existing fault codes stored in the ECU. For care, avoid using high-pressure chemical cleaners directly on the sensor ports, as this can damage the internal diaphragm.

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