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Tag Archives: wastegate
Troubleshooting Low Boost
Underboost is a condition that can be caused by several issues including: Bad TCV Bad Turbocharger Failed boost sensor (for models that have them) ECU seeing overboost and cutting back until reset and condition remedied Failed MAF (for ecu’s that … Continue reading
Tightening up the Turbo Waste Gate ?
Wastegate Settings – Numbers and Theory The idea here is to assure the wastegate valve remains closed until the wastegate experiences the preset pressure in the VADIS doc above. Anything higher than the Vadis pressure and the wastegate valve shoud … Continue reading
’97 850 Turbo De-Tuning
Help Me Make My Volvo Slower! I know I’m going to sound stupid and ignorant with this, but I need to know if there is any way to tune down my 850 turbo. I kicks in at the slightest throttle … Continue reading
Modifying the Wastegate actuator rod…
The Cheapest Performance Mod The 4.4 Motronics (94-98) can handle up to 3+ turns but you don’t want to do that. You will actually get too much boost almost off the line and in bad weather can be a bit … Continue reading