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Diesel Engines A forum dedicated to diesel engines fitted to Volvo cars. See the first post in this forum for a list of the diesel engines. |
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Code PO 244Views : 1471 Replies : 2Users Viewing This Thread : |
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Aug 8th, 2010, 16:44 | #1 |
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Last Online: Nov 21st, 2010 18:51
Join Date: Aug 2009
Location: Sunderland
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Code PO 244
The turbo is acting up again and still getting generic code PO244 wastegate solenoid range. Any one tell me if no vacuum applied to actuator does wastegate vanes divert exhaust gasses down exhaust pipe i.e. very little or no turbo boost and does max vacuum give most boost. I suspect maybe the wastegate vanes are siezing or intermittent action.
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Aug 8th, 2010, 16:52 | #2 |
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Last Online: Yesterday 23:40
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Location: L/H side
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the vanes can stick due to a cracked control ring in the turbo , there are two of these rings which swivel the vanes , the rings are about 80 mm diameter ..
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Aug 9th, 2010, 11:07 | #3 |
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Location: Ramelton
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The vanes are almost closed with no vacuum , with max vacuum the vanes are fully open . All the exhaust gas goes through the variable nozzle vanes and spins the turbine and non of it is bypassed unlike the previous generation diesel turbos that used a wastegate .
Last edited by Bernard333; Aug 9th, 2010 at 11:12. |
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