APC solenoid - Saab 900 Bulletin Board - Saabnet.com
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APC solenoid
Posted by Bill U (more from Bill U) on Mon, 12 Nov 2001 12:47:46
In Reply to: What is that thing hooked to the turbo lines??, Dinger, Mon, 12 Nov 2001 12:23:09
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APC (automatic performance control)
The wastegate is set to open at 6 # pressure.
The APC solenoid basicly leaks off pressure going to the wastegate so you can aschieve higher boost levels, but sometimes does not leak off pressure to give lower boost levels in order to protect the engine and tranny.
With a manual tranny, you get less than full boost in 1st gear to protect the trans. Other factors that enter into max allowed boost are engine temp and knock sensor.
Bad insullation on wires can be taped up, or new wire run.
posted by 12.106...
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