Ive just fired up the 300 after a 3 month lay up, went first time. The oil presure guage has stayed at 0 and the boost guage is over to the left and neither are moving when the engine is run, any ideas ?

The boost gauge wont move from the far left much when stationary as the car doenst build boost in neutral, it might build like 2psi, if it wasn't working it would just stay at 0

Started thye car today, tapped the dials and hey presto both working, must have got stuck during the cold damp weather, so all now is fine , thanks for the advice.

Started thye car today, tapped the dials and hey presto both working, must have got stuck during the cold damp weather, so all now is fine , thanks for the advice.