Originally Posted by jasons
disconnect the battery for a day.
I had the same problem with an astra dti using collins performance a few years back, they blamed the car.
A while later I chipped it myself with no problem at all.
Was thinking about "chipping" my JTD myself, as theres plenty of softeware/connectors available on ebay. How did you manage it? How did you know how much to advance fueling/boost etc without causing damage?