Hi everyone I'm hoping someone may be able to point me in right direction. I have a ds3 1.6hdi 90hp over last couple of months I have noticed a slight flat spot when accelerating and sometimes when coming to a stop at traffic lights or a junction the idle is jumpy but clears after about 30secs and then if you accelerate again it will do same again and clears again after short period.
Today I cleaned map sensor and it ran a bit better but still slight shake when coming back to idle.
I plugged into diagbox today to get injector values which are as follows. For injector flow correction.
Cylinder 1 -00.4
Cylinder 2 -005
Cylinder 3 -00.3
Cylinder 4 01.1
There is no smoke coming from exhaust car runs fine just flat spot and jumpy on idle
Measured air flow 0395
Air flow setting 0260
Could this be injector fault or possibly map sensor.