Originally Posted by
Karlos G
Yes it can........ Amal valve Christian
If the ECU is reading high ACT's or knock it will pull the timing back and close the Amal valve this would cause the boost problem he is experiencing.
Sounds like a duff ECU to me.
Is the risk of buying electronic devices on ebay...

Now at least, I'd like to know if the chip runs well in another ecu..
Which is the boost limit in heart&diamonds ecus (spec90)??
Thanks for your answers