Thanks for the reply, I took time and logged some hours driving with vida and came to the conclusion that my potentiometer 1&2 that I had a fluctuation. The tps had already been replaced less than a year ago and went bad, should have bought a new one but figured out you can get lucky with a junk...

Maybe check the catalytic converter for a restriction on exhaust or check that your alternator is charging at the battery and not running on battery voltage alone

What kind of injectors did you buy? Where they oem?

I have had this Volvo for a while, I pulled the engine after an accident and found a shell to rebuild, it's had the saucer tps retro fit done, new delphi pump, ran like a champ until the other day, I was talking to someone about how Volvo's take abuse, until they don't anymore and refuse to cooperat...