stalling for me too
Thread is about a year old but I hadn't seen it before so adding my $0.02.
I've got a stock S260. I bought the BOE tune last summer. While its not hugely faster than stock, the engine map is better in general (more torque down low and general overall better smoothness). EXCEPT .. I've got the dreaded stalling issue.
I emailed BOE and some other guys there have responded but not Phil directly (several times, trying again). I understand these things are difficult but the fact that a lot of us are having this issue (seems to me more than 1/10) that they should re-tune.
I am in CA and we have pretty crappy gas here but looking at the thread it doesn't seem to be related to that. Now my car has a lot of track miles but I maintain it as well. I gather there is a way to turn a set screw on the throttle body but I'm a bit loathe to do that (and frankly, I'm not sure exactly where that is).
Where I notice it:
- engine warmed up - yes. Heat soak, I seriously doubt it
- warm temps outside, cool temps outside - doesn't seem to matter
- when it occurs:
very hard to pin down but it happened to me 4x today.
1. Coasting between gears (yes, on the street, I do coast)
2. coming up to a stop light (again, coasting)
Sometimes I can 'catch it' by watching the tach and if it starts to waiver when I'm off throttle, I can hit the throttle and it will stay above.
My car has been fine for many years with no idle problem with the stock ECU map. In the past, I cleaned the MAF sensor - I haven't tried that recently. Also haven't checked the air filter recently.
But isn't there something more fundamental here? I mean why would it be fine with normal drivability and only sometimes this happens (and of course when you least expect it) and it never happened before (I've owned my. car since new, its got about 38K miles on it).