Volvo Penta D3 220 high boost pressure

[shea1790]

Hi guys, I’m having some issues with my Volvo Penta D3 220 engine. On start up at full throttle 4000 rpm the engine will go into limp mode because of high boost pressure going to about 2.3 bar(90% of the time on startup). When the boost pressure goes above 2 bar for 3 seconds it will go into limp mode. I thought the vgt valve was the issue because it seems as though it was not closing the valve fast enough and causing to much vacuum therefore keeping the vanes on the turbo extended. I also checked the control linkage and everything is free and actuating good. After the engine is reset following the limp mode the boost pressure regulates fine at 1.9 bar. The eecu is telling the vgt when to open and close so is there any chance that this could be in parameters? Anyone have any ideas why I’m only getting this on start up? The engine is in a rescue boat and it’s always plugged in so it’s warm and ready to go.
Thanks in advance.

 

[Andyroonot]

Hi guys, I’m having some issues with my Volvo Penta D3 220 engine. On start up at full throttle 4000 rpm the engine will go into limp mode because of high boost pressure going to about 2.3 bar(90% of the time on startup). When the boost pressure goes above 2 bar for 3 seconds it will go into limp mode. I thought the vgt valve was the issue because it seems as though it was not closing the valve fast enough and causing to much vacuum therefore keeping the vanes on the turbo extended. I also checked the control linkage and everything is free and actuating good. After the engine is reset following the limp mode the boost pressure regulates fine at 1.9 bar. The eecu is telling the vgt when to open and close so is there any chance that this could be in parameters? Anyone have any ideas why I’m only getting this on start up? The engine is in a rescue boat and it’s always plugged in so it’s warm and ready to go.
Thanks in advance.

Do you have the fault code that’s being triggered?
And what about the engine serial number?

 

[shea1790]

The fault code is FMI 0. Air inlet pressure too high. The engine is a D3 220 I - H and the serial number is A1005431