I got the car mapped last Thursday and it has started stalling at low revs like when slowing down and coming out of 2nd on the way down the gears it's cuts out which is really annoying and quite dangerous as I lose power steering. It was fine before the map I'm just not sure if it's the map or that it's just highlighting a problem that was already there. I have had it into the garage and they have messed around withe the idle and it's helped a little bit but it's still doing it.
It's like when I'm coming down the gears and out of second the Rev counter drops right down to zero then will jump back up, sometimes it catches it in time then other times it stalls.
Has anyone else had this issue before.
Also I have just had the front o2 sensor replaced but with no improvement.

 

Year of car?

Mods?

Sounds like a map issue to be honest.

 

Yes it's your idle control valve lots of info in google and here. Possible

 

agree the idle valve can do this if its a newage imparticular but if it was okay before remap and not after then possibly not..

need more info on mods and year of car

 

It's a 03 wrx, td05 20g 550cc Injectors sti tmic sytec fuel pressure regulator tubular manifold and up pipe and from turbo back exhaust.
Idle control valve was mentioned today thinking it might be a sticking sensor.

 

I had the same sort of thing, was injector duty I think. Speak to your mapper..

 

I had this, on my car it was a dead/dying maf.

 

Would be a good idea to contact the mapper and get him to come and sort it.

 

Was just going to say that. It's like having an issue with buying a shirt that's too big and wondering what to do next.

 

Going to send an email to the mapper and see if this is something that he has had before.

 

mine was mapped and had quite a fun few days trying to learn clutch control, took it back to mapper and he stalled it, then fixed it perfectly not a stall insight after.