2002 V70 stumbles at idle 6814 TC

[ljsommar1]

I recently stepped hard on the accelerator, attempting to make a light. The car stumbled badly but did not stall. When I went to accelerate after the light changed the car stalled several times before I was able to feather the throttle enough to go. This pattern continues especially when not warmed up. When I do get it going, it runs fine and there is no CEL. Car has 232K miles on the odometer.
A somewhat through examination of the vacuum hoses did not reveal any leaks (all or at least most are new) but I have not yet done a smoke test. My OBDII tool ( Autel MaxiDiag EU702), revealed one fault code, a 6814 TC - turbo control signal too high.
I had recently replaced the turbo boost sensor for a persistent code (I can't recall what) and the problem immediately went away. I assumed problems solved.
Anyone have a better idea than replacing the boost sensor? I do have a Vida/dice setup but I am close to useless at using it and haven't used it in so long I doubt that I could get it going.

[jonesg]

Its worth trying to get vida working for you.
I struggled with mine for over 1 year but got it going eventually.
Meantime I'd check the turbo control isn't gunked up.

[ljsommar1]

Thanks for the reply.
What exactly is the "turbo control" - another name for the boost sensor?
This is not a problem that came on gradually, more like a switch. Which I'm thinking isn't something getting dirty.
Perhaps worth noting the boost sensor that I installed last November (probably 1,500miles ago) was an OEM Bosch unit.
Is there a bench test for the boost sensor?

[xHeart]

Thanks for the reply.
What exactly is the "turbo control" - another name for the boost sensor?
This is not a problem that came on gradually, more like a switch. Which I'm thinking isn't something getting dirty.
Perhaps worth noting the boost sensor that I installed last November (probably 1,500miles ago) was an OEM Bosch unit.
Is there a bench test for the boost sensor?

YES, it starts gradually and turns a real menace. Pierburg is a known OE for the control valve. The problem could just be a deteriorating hose -- unstable vacuum or air intake reported data. Here is my experience ad scope of your situation viewtopic.php?f=9&t=95124

[ljsommar1]

Well, I am a little bit embarrassed to admit it but I missed a turbo hose that became disconnected.
I had replaced the radiator some months ago for a broken goose neck and apparently I did not properly tighten the clamp on the output duct from the intercooler to the throttle body.
The turbo ducting was the first thing that I checked just not well enough. When I removed the boost sensor to inspect it I noticed my poor work.. Oh well, hopefully problem solved with only a damaged ego.

[jonesg]

its never a bad approach to go over the most previous work.