nord
Veteran Member
- Joined
- Mar 5, 2010
- Location
- Southern Tier NY
- TDI
- All turned back to VW. Now a 2017 Hundai Tuscon. Not a single squalk in 10k miles.
As most here know I changed from a '13 to a '14 SE MT which is virtually identical right down to color. Road manners are identical. Economy is too early to tell but appears the same. Performance seems about equal from a seat of the pants perspective. (Very good by the way.)
One detail I became aware of yesterday tends to lead me to think that VW has done some mapping changes on the ECU or a component or control directly affecting the turbo and fueling has been modified. I'll spare most of the details except to say that my son and I were fooling around right next to each other yesterday. Both of us pretending to be teenagers and revving our motors (not to the point of abuse) like we were about to drag race. Basically tapping the go-pedal and allowing the engine to spool up a bit. Not exactly like placing two fuelers side by side.
It immediately became clear that the '14 is much less abrupt. "Abrupt" being the best term I can think of. I can understand the difference between turbos but this seems to be something else. In normal driving I detect no difference. The best I can describe is a "soft" and limited rev in the '14 versus a much more abrupt and harder rev in the '13.
Draw whatever conclusions you will but I'm beginning to think I might have been on to something early on. I won't argue about a possible physical problem with our turbos. They're somewhat delicate I suspect. On the other hand it would seem that perhaps the ECU was setting up a series of events that under certain circumstances almost guaranteed a cooked turbo no matter which revision level it might be.
You don't suppose that our ECU's are now commanding a "softer" cycle, do you? And, no, I don't think it's just me. The '14 is fueling differently than the '13. It's not something one would normally notice unless sitting side by side with the '13 as it's so subtle.
Food for thought anyway. Maybe only my car. I just thought that this might be of interest. It could possibly begin to explain both the turbo revision levels and why the '14's seem to have a better track record at this time.
So... For what it might be worth.
One detail I became aware of yesterday tends to lead me to think that VW has done some mapping changes on the ECU or a component or control directly affecting the turbo and fueling has been modified. I'll spare most of the details except to say that my son and I were fooling around right next to each other yesterday. Both of us pretending to be teenagers and revving our motors (not to the point of abuse) like we were about to drag race. Basically tapping the go-pedal and allowing the engine to spool up a bit. Not exactly like placing two fuelers side by side.
It immediately became clear that the '14 is much less abrupt. "Abrupt" being the best term I can think of. I can understand the difference between turbos but this seems to be something else. In normal driving I detect no difference. The best I can describe is a "soft" and limited rev in the '14 versus a much more abrupt and harder rev in the '13.
Draw whatever conclusions you will but I'm beginning to think I might have been on to something early on. I won't argue about a possible physical problem with our turbos. They're somewhat delicate I suspect. On the other hand it would seem that perhaps the ECU was setting up a series of events that under certain circumstances almost guaranteed a cooked turbo no matter which revision level it might be.
You don't suppose that our ECU's are now commanding a "softer" cycle, do you? And, no, I don't think it's just me. The '14 is fueling differently than the '13. It's not something one would normally notice unless sitting side by side with the '13 as it's so subtle.
Food for thought anyway. Maybe only my car. I just thought that this might be of interest. It could possibly begin to explain both the turbo revision levels and why the '14's seem to have a better track record at this time.
So... For what it might be worth.
In fact, I notice the detuning more during light-medium acceleration than during any aggresive acceleration.