DPF Exhaust Pressure Sensor suitable for 4JJ1 4JJ3
If you are having issues with DPF regeneration / engine lights this may be caused by the EPS, they are a common fault and much cheaper than an entire DPF. The EPS sensor monitors restriction across the DPF on your late model Isuzu D-Max / MU-X, so that the ECU can decide whether or not to do a regeneration burn.
When a fault in the DPF/Exhaust pressure Sensor system occurs, it is important to correctly determine which component (if any) is at fault due to the generally high cost of a new DPF.
Testing EPS voltage using a Multimeter:
-A typical output signal voltage on a DPF system that is unrestricted is Approx. 0.5 – 0.7V at Idle. A partially restricted DPF may increase this reading a small amount.
-At Full Load (approx. 2000RPM) on an unrestricted DPF the expected output signal Voltage would have a typical reading of approx. 1.6V.
Note: A restricted DPF would generally indicate an increased voltage that could be as high as 4.0V on a DPF that is excessively restricted.
This is a rough indication only and further testing would be required to diagnose a DPF fault.
🚗 Suitable for:
- Isuzu D-Max 2016+ 44J1 and 4JJ3 3.0L Engine – Models with Factory DPF
- Isuzu Mu-X 2016+ 44J1 and 4JJ3 3.0L Engine – Models with Factory DPF
📦 Dispatch information:
We keep these on the shelf at our Brisbane store, for fast dispatch.






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