what can cause boost to fluctuate up and down while boosting when i let of and put down again it seems to steady and rise more notice when in 4th gear to 1bar 99 uk standard scooby
have no codes when black plug connected
when i connect both black and green first thing in morning and drive i get code 32 come up after about 6 flashes of this code it then just blinks normal for no code
code 32 is lambda sensor which i have fitted a new one does this happen as car is cold and lambda not hot enough as if i leave for an hour and try with both connectors it flashes no code only seems to do lambda code when i have left over night and try first thing

 

Warm the car up before you attempt to reset the ecu

What levels does the boost fluctuate between? - Probably a solenoid issue.

As per our previous discussion, i'm still happy to look at your car and resolve the problem for you