Originally Posted by
MARCOSWORTH
Try another Amal valve

You have a spare one Marco?
Originally Posted by
Turbosystems
it looks to me as though you have boost mapping issues ie the boost map is std
the primitive valve cannot accurately control boost and the l8 only has a simple boost strategy
to eliminate this possibility ground pin 16 of the ecu or ground it at the amal valve temporarily
and report your findings please
Will ground pin 16 and post the results here