sounds to me like the classic egr main sticking
each time you stop. and speed goes below say 1/2 MPH, or zero. the ECU commands the EGR closed then or if it sees the idle switch close.
many times it will not, and engine rpm falls like a rock.
its not idle controls, i think.
the fast right foot works but takes lots of action to wake it up this, is the EGR main, dumping exhaust gasses , when it must not.
if the right foot works fast and easy here (stall or near) the ISC failing.. if not EGR leaks.
pretty much....
what i do, on the cold engine is blip the EGR diaphragm, by hand , with finger. key in pocket.
it must move easy and drop back each time with assuring thud.
push here. (under 96up page)
![[Image: egr-main2.jpg]](http://www.fixkick.com/sensors/EGR/egr-main2.jpg)
see that inside metal ring, that is the test ring, to push it.
one other test is to get it closed. then unplug the vacuum hose NOt larger bark hose)
and then golf TEE the sucking hose side (up stream)
if the stalls now end,? BINGO.
takes like 5min work do this ,this, not test, just hose hack.
each time you stop. and speed goes below say 1/2 MPH, or zero. the ECU commands the EGR closed then or if it sees the idle switch close.
many times it will not, and engine rpm falls like a rock.
its not idle controls, i think.
the fast right foot works but takes lots of action to wake it up this, is the EGR main, dumping exhaust gasses , when it must not.
if the right foot works fast and easy here (stall or near) the ISC failing.. if not EGR leaks.
pretty much....
what i do, on the cold engine is blip the EGR diaphragm, by hand , with finger. key in pocket.
it must move easy and drop back each time with assuring thud.
push here. (under 96up page)
see that inside metal ring, that is the test ring, to push it.
one other test is to get it closed. then unplug the vacuum hose NOt larger bark hose)
and then golf TEE the sucking hose side (up stream)
if the stalls now end,? BINGO.
takes like 5min work do this ,this, not test, just hose hack.
http://www.fixkick.com