Jason Jewell Posted January 29 Share Posted January 29 hi there posted this previously today, think in the wrong area ,trying to get to the bottom of the limp mode issue, been getting a wastegate data intermittent fault started only under light load but it was getting worse especially on hot days. changed boost pressure and inlet manifold temp sensors, also loaner ecu , all made no difference. just changed the wiring harness and now fault is there immediately after starting also another one which is wastegate open circuit. triple checked everything all seems good? any help appreciated thanks Quote Link to comment Share on other sites More sharing options...
Adkat Posted January 29 Share Posted January 29 sb221029.pdf Quote Link to comment Share on other sites More sharing options...
Adkat Posted January 29 Share Posted January 29 VMAC111 service manual 8-211. Gives you testing procedures for diagnosing specific faults. Be worth a look https://macktrucks.vg-emedia.com/ProductDetail.aspx?ProductId=6156&GroupId=-1 Quote Link to comment Share on other sites More sharing options...
Adkat Posted January 29 Share Posted January 29 Wastegate Turbochargers - Description, Operation and Troubleshooting sb214017.pdf Quote Link to comment Share on other sites More sharing options...
Jason Jewell Posted January 29 Author Share Posted January 29 thanks for that, have had an auto sparky look at it previously with that same bulletin but maybe now the fault is constant it might be more successful. Quote Link to comment Share on other sites More sharing options...
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