Fault codes P0088 / P0193
Discussion
Hey all, hoping someone here might have an idea what’s going on with my van.
I’ve got a Peugeot Partner 1.6 HDi that’s started acting up recently. After about 10/30 minutes of driving it loses power and completely cuts out. If I leave it for a bit and let it cool down it’ll start again but it runs pretty rough.
A mechanic I was using replaced the diesel filter, the high pressure sensor (second-hand), and the low pressure fuel pump in the tank. He said it was sorted, but it broke down again within half an hour with the exact same issue.
The fault codes I’m getting are P0088 and P0193. I’ve checked the battery and grounds and they seem fine. I don’t have a lot of mechanical experience beyond YouTube and forums, so I’m a bit stuck now.
Has anyone had something similar or know what I should be looking at next?
I’ve got a Peugeot Partner 1.6 HDi that’s started acting up recently. After about 10/30 minutes of driving it loses power and completely cuts out. If I leave it for a bit and let it cool down it’ll start again but it runs pretty rough.
A mechanic I was using replaced the diesel filter, the high pressure sensor (second-hand), and the low pressure fuel pump in the tank. He said it was sorted, but it broke down again within half an hour with the exact same issue.
The fault codes I’m getting are P0088 and P0193. I’ve checked the battery and grounds and they seem fine. I don’t have a lot of mechanical experience beyond YouTube and forums, so I’m a bit stuck now.
Has anyone had something similar or know what I should be looking at next?
The combination of fault codes P0088 and P0193 on your Peugeot Partner 1.6 HDi points to a very specific issue: the engine's computer (ECU) is detecting that the fuel pressure in the common rail is too high.
Here is a breakdown of what each code means:
P0088: Fuel Rail/System Pressure - Too High. This is the main mechanical and electrical confirmation that the pressure has exceeded the expected threshold .
P0193: Fuel Rail Pressure Sensor Circuit High Input. This indicates the sensor is sending a signal voltage above its maximum normal range (typically above 4.75V) .
While the first instinct is often to blame the sensor itself, the wiring or a failing component on the high-pressure pump is equally likely.
Here is a breakdown of what each code means:
P0088: Fuel Rail/System Pressure - Too High. This is the main mechanical and electrical confirmation that the pressure has exceeded the expected threshold .
P0193: Fuel Rail Pressure Sensor Circuit High Input. This indicates the sensor is sending a signal voltage above its maximum normal range (typically above 4.75V) .
While the first instinct is often to blame the sensor itself, the wiring or a failing component on the high-pressure pump is equally likely.
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