Quote:
quote:Originally posted by Ian-PT-GT
... On a cooler day the "Next Generation controller" in our GTs, compensate with lower boost levels. this will make a lower whine.
Ian
|
Does this only apply to a vehicle that is at normal operational temperature and then the PCM uses outside ambient temp to control boost or outside ambient and engine temp?
The reason I ask is that I keep hearing that cooler air temp will reduce boost levels, but my GT boosts 2psi more when it is cold, outside temp no lower than 55F. It does seem to drop off after I have been running around town and such, 20 to 30 minutes.
Even if it does only use outside ambient temp it would not make sense to cut boost only at normal operating temp and not a cool running engine, isn't it for overboost protection? If it does boost more with a cooler running engine then this makes a good case for a lower temperature t-stat.
I do have SI.
Any ideas?
[8)]