21-11-2016, 09:38 PM
I suspect your engine uses an MSA11 ECU - so probably not, very old school 8bit architecture. The later 325tds ECUs (MSA12 from memory) do have vacuum operated boost control, however, the maps are pretty coarse and small, I've never really looked at MSA11/12 in enough detail to know a huge amount.
Your best bet in reality is to swap to a later EDC15 based ECU - get one from the mid-age VP37 pumped 1.9TDis etc which are well documented in their operation and should control your pump fine. Unless your pump is a VERY early non-HDK quantity adjuster sensor in the pump, in which case you're pretty much stuck where you are unless you upgrade the pump hat to one with a HDK QA.
EDC15 ECU would require some work to run sweetly, but teach yourself if you've got some time and want to learn something new.
Your best bet in reality is to swap to a later EDC15 based ECU - get one from the mid-age VP37 pumped 1.9TDis etc which are well documented in their operation and should control your pump fine. Unless your pump is a VERY early non-HDK quantity adjuster sensor in the pump, in which case you're pretty much stuck where you are unless you upgrade the pump hat to one with a HDK QA.
EDC15 ECU would require some work to run sweetly, but teach yourself if you've got some time and want to learn something new.
