seems the ECU is controlling idle , its off 50rpm max hot spec. is 850. low is 750. (dash tacho is not accurate, so it must be ok) its slow like mine was too, 1 to 2 second to correct.
pulling that hose is illegal unmeteredr air introduction causing gross lean and stall, normal test, ok.
ok 900 to 700 pinch is wrong. if a real tacho.
it must go lower, try pinching ISC and then turning the bleed screw CW for say 600 rpm. that will give the ISC 200 RPM free board.
the controls are working,
i forgot the check for pulling the ISC connector hot coolant.
should match the pinched RPM. if not the ISC leaks badly if difference is great.
btw if you have A/C turn it on causes 1000 RPM (or idle plus 200) (ecu idle up feature)
it looks like there is a small leak in the induction somewhere.
pinching the ISC hose usually gives (hot) a 800 to 400 rpm drop absolute or from 800 to 500 rpm. The ISC is a major air source hot, big time. your bleed seems to be too far in
someone found this leak before and tried to hide it with bleed screw in.
btw, with the bleed screwed and and iSC pinched, there is no air supply at all. if it runs like this at all even 500 RPm there is a huge breach somewere.
see my trick here, to kill all air? see what she does? it can be shocking. if it runs, what the heck?
mine had the good old IAC leaking
see 4pm slot here, i packed this in clay (hot) and idle fell like a rock.
http://www.fixkick.com/fresh-air/Slide_S...ge_20.html
the tests are simple but finding air leaks is very hard sometimes.
one guy had ice damage and cracks where no man can see. (8V throttle bodies can be a horror) the 16v only has the IAC to worry.
pulling that hose is illegal unmeteredr air introduction causing gross lean and stall, normal test, ok.
ok 900 to 700 pinch is wrong. if a real tacho.
it must go lower, try pinching ISC and then turning the bleed screw CW for say 600 rpm. that will give the ISC 200 RPM free board.
the controls are working,
i forgot the check for pulling the ISC connector hot coolant.
should match the pinched RPM. if not the ISC leaks badly if difference is great.
btw if you have A/C turn it on causes 1000 RPM (or idle plus 200) (ecu idle up feature)
it looks like there is a small leak in the induction somewhere.
pinching the ISC hose usually gives (hot) a 800 to 400 rpm drop absolute or from 800 to 500 rpm. The ISC is a major air source hot, big time. your bleed seems to be too far in
someone found this leak before and tried to hide it with bleed screw in.
btw, with the bleed screwed and and iSC pinched, there is no air supply at all. if it runs like this at all even 500 RPm there is a huge breach somewere.
see my trick here, to kill all air? see what she does? it can be shocking. if it runs, what the heck?
mine had the good old IAC leaking
see 4pm slot here, i packed this in clay (hot) and idle fell like a rock.
http://www.fixkick.com/fresh-air/Slide_S...ge_20.html
the tests are simple but finding air leaks is very hard sometimes.
one guy had ice damage and cracks where no man can see. (8V throttle bodies can be a horror) the 16v only has the IAC to worry.
http://www.fixkick.com