![]() ![]() Check the movement of the TC vane position actuator rod for smooth action. If the actuator rod does not move and the vacuum remains constant then the turbocharger (TC) is faulty. Carry out road test to confirm the fault has been rectified. ISSUE: Trouble codes P0049 and P1407 stored in engine control module (ECM) fault memoryĭIAGNOSIS & SOLUTION: A 2013 Volvo XC70 2,0 Diesel is in our workshop with the engine malfunction indicator lamp (MIL) illuminated. There are trouble codes stored in the engine control module (ECM) fault memory relating to the exhaust gas recirculation (EGR) system and turbocharger. We have tested the exhaust gas recirculation (EGR) valve function which is OK. We think it could be the turbocharger at fault but are reluctant to replace the turbocharger as it is an expensive part. Yes, we are aware of a fault that affects Volvo models 2012-13 with D5204T3 engine code. ![]() The cause of the problem is a faulty manifold absolute pressure (MAP) sensor, located on the turbocharger (TC) intercooler (fig. Fit a new manifold absolute pressure (MAP) sensor. Carry out road test to ensure fault has been rectified.
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