Boost pressure issues seem to be the #2 issue in the Volvo Performance world beaten out only by vacuum leaks. Boost pressure control in the 1994-1998 models is a pretty simple system but for the ECU to manage boost correctly it relies heavily on known base values and settings. If these settings are off or if there are mechanical issues then the boost control system can be out of whack.
I shot an email over to my favorite Volvo speed genius Lucky, of Active Research & Development, formerly of iPD, MVS sponsor. He was happy to give his thoughts on the question Chip or Manual Boost Controller? Now, I know what you’re thinking: he runs a chip tune company! Of course he’ll favor chips! Yes […]
Stage 0 means to get your Volvo’s critical systems as close to new as you can get, or alternately, to get your Volvo’s components replaced or rebuilt in the systems that can cause problems, like braking, or steering, etc.
You should do these things to increase reliability, boost economy, in preparation for performance modifications, or all three.