06-15-2014, 01:29 AM
yes, and the ISC does more
it is used when you drive fast and cut the throttle to zero
this is the dashpot effect or anti neck snap effect , (isc is only air supply hot = tiny bleed) acceleration protections.
on some cars,. may be this one.
the ISC data for hot is stored, so at hot restarts, it is set to the last setting, for easier faster hot starts.
push pull, yes.
this happens for sure if the TPS idle switch is set wrong, set to open late.
this causes the ISC to fight you foot at tip in, its an ugly effect this.
that is why they use 3 feeler gauges. go, nogo and calibrate.
btw i have no knowledge of ISC actions with IAC wide open or at the magic 158F temp. gray area...
it is used when you drive fast and cut the throttle to zero
this is the dashpot effect or anti neck snap effect , (isc is only air supply hot = tiny bleed) acceleration protections.
on some cars,. may be this one.
the ISC data for hot is stored, so at hot restarts, it is set to the last setting, for easier faster hot starts.
push pull, yes.
this happens for sure if the TPS idle switch is set wrong, set to open late.
this causes the ISC to fight you foot at tip in, its an ugly effect this.
that is why they use 3 feeler gauges. go, nogo and calibrate.
btw i have no knowledge of ISC actions with IAC wide open or at the magic 158F temp. gray area...
http://www.fixkick.com