D tronic 7,3 300 hp Boost problem To high

[harry i]

<br>Heat Damaged turbo hose, melted . So whe changed the hoses to silikon hoses . ( they also melted ) Whe then run teste`s with new hoses once again . <br>When testing Boost presure the reading is 180 kpa pressure . Inter cooler tested and have been cleand and has free flow . Measured boost pressure after intercooler same pressure . <br>When testing the ecu with diag tool from mercury/Rinda fault code pid 254 fm1-8 is detected . The text is :int ECM error . Abnormal freq or puls with . Fault code ative . If you delete the fault and cont run the engine , the engine runs ok and no change in boost pressure .Still to high according to serv manual. The boost pressure for this engine should be according to the manual 62-75 kpa . The map sensor register same high pressure at Merc -Rinda tester 180 kpa . Baro sensor /inntake temp sensor normal . <br>Is there any comment about this fault code /boost pressure in this forum ? The power in the engine has not increased even with this high pressure . if we cont running the engine with so high pressure , the engine will breake down . <br><br>Changing parts her in Norway is a extremely costly , so any advice for solving the problem would be gratful. <br>Regard Harry i <br><br>Data from Rinda Merc tester : <br>engine running time : 386<br>inj -contr pressure max speed :19,8<br>ECM Versj 51067<br>ECM CHECK SUM 4D50 HEX <br>VPM VERSION 51048<br>VPM HIGH CHECKSUM 41 HEX <br>VPM LOW " 46 HEX<br>VPM SERIALNO 0000C73854<br>