Ermuns Posted March 17, 2022 Share Posted March 17, 2022 Engine in I assume limp mode sent it to garage to have rear coolant pipe replaced ie egr valve to thermostadt housing they returned the car in limp mode and wouldn't take responsibility have cleared dlls but after startup returns with service engine .have changed sensor in airbox also boost pressure sensor under turbo and again put new map sensor in on intercooler pipe to egr valve .just after startup still returns po298 and puts engine in limp mode have also pushed actuator rod to see if it had seized moved freely anyone shed any light on it please Quote Link to comment Share on other sites More sharing options...
F0CUE Posted March 17, 2022 Share Posted March 17, 2022 P0298 means it has overheated at some point possibly before the coolant pipe was replaced. I would get it diagnosed before the worst happens. Possible causes for this P0298 code may include: An engine cooling system condition that has resulted in engine overheating Defective engine oil temperature sensor Open or shorted circuit Corroded wiring and/or connectors Low oil level. Quote Link to comment Share on other sites More sharing options...
Ermuns Posted March 17, 2022 Author Share Posted March 17, 2022 The car prior to going to the garage to have hose changed drove perfectly was aware of leaking pipe and kept on top of it once I had replacement took it to garage to be replaced garage returned car in limp mode and disclaimed it left me with it it run perfectly prior to garage Quote Link to comment Share on other sites More sharing options...
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