Hi,
I do maintenance on a friend's recently bought VW Polo 9N, powered with the small 1.2 3 cylinder petrol engine, 6 valves, 40kW.
The stock airbox have a hot/cold air flap on the atmosphere side, which I believe (from youtube video tests... with heating the stat) is dysfunctionnal. I temporarily locked it in place, and so far the performance is consistent and no CEL came on. Of course it's a purely mechanical device, driven by carefully loaded springs, and a waxstat. It is said to dynamically adjust hot/cold air mix (hot side is on the exhaust manifold shield), depending on rpm, engine load, and near cylinder head temp (from where the stat is positionned when the airbox is mounted).
Is there any adverse known effect, knowing we're in a tropical climate, to purely delete the flap and close the hot and pilot holes ? I can't find the waxstat part alone to replace it and try to see if the flap works correctly.
I do maintenance on a friend's recently bought VW Polo 9N, powered with the small 1.2 3 cylinder petrol engine, 6 valves, 40kW.
The stock airbox have a hot/cold air flap on the atmosphere side, which I believe (from youtube video tests... with heating the stat) is dysfunctionnal. I temporarily locked it in place, and so far the performance is consistent and no CEL came on. Of course it's a purely mechanical device, driven by carefully loaded springs, and a waxstat. It is said to dynamically adjust hot/cold air mix (hot side is on the exhaust manifold shield), depending on rpm, engine load, and near cylinder head temp (from where the stat is positionned when the airbox is mounted).
Is there any adverse known effect, knowing we're in a tropical climate, to purely delete the flap and close the hot and pilot holes ? I can't find the waxstat part alone to replace it and try to see if the flap works correctly.