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Volvo stop engine fault

Shahidsolangi49

Shahidsolangi49

Well-Known Member
Joined
Oct 25, 2023
Messages
45
Location
Pakistan
Volvo ew145b prime fault code 128 sid 232 4 ECU error

Machine shuts down after half to one minute of start.

Sometimes also appear 128 psid 97 7 .
The serial number for vecu is mentioned in the picture.
Any help will be greatly appreciated!
 

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Innocent bystander

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Joined
Aug 28, 2022
Messages
61
Location
Kissimmee Florida
232-4 Detection conditions:The engine control unit (E-ECU) registers: that the voltage is below 4.5 V (EA7)(EA11) Looks like rail pressure sensor 5V ref shorted to ground.

97-7 Rail pressure relief valve stuck closed- I suspect because ECU cant read pressure when short to ground occurs.
 
Shahidsolangi49

Shahidsolangi49

Well-Known Member
Joined
Oct 25, 2023
Messages
45
Location
Pakistan
Thank you so much for the reply Innocent bystander!
I think you wants to say that the signal wires are somewhere shorted to grounds?
 
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