duty cycle/open loop under boost
Ameer Antar
ameer at snet.net
Tue Dec 5 23:31:36 EST 2000
I remember you had gotten 65% D.C. when under open loop. The Bentley says
80% below 68 deg., but reading thru the Bosch CIS book, C. Probst says 60%.
So there is some discrepancy. I would tend to trust the Bentley, but maybe
this just means it's not a huge issue...
Also, I'm still looking for conditions where ECU goes open-loop. Probst says:
-low coolant temp
-invalid o2 sensor output
-WOT
-coasting [decel valve on...not applicable to my A/T, though]
but I can't find mention of open loop above 1.1 bar in Bentley or Bosch
book. If anyone has info, I'd appreciate it as it could help understanding
what's wrong w/ my car's CIS. Thanks.
-ameer
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