03-03-2021, 12:52 AM
the surge means AFR is way way off
AIR fuel ratio.
that ISC unplugged would stall any good engine hot.
when hot the this engines, has no air supply at all with ISC unplugged, that is a fact, (ISC closes at 150F) if thermostat is bad, well that be first, things first.
hot engine air, all
1: TV (zero air here) if cables slack there must never be air flow here, TV = the brass throttle valve in the TB.
2: IAC closes at 150F, but hot engine is 180f or more, your scan tool tells you ECT reading 180f is normal not 140f ever hot. easy no, just glance at OBD2 ECT readings LIVE.
3: ISC, is electronic idle control and is 800RPM hot, unplugged it closes 100% by its own springs inside, and all air ENDS NOW and the engine must stall.!!!!
if not we then find out why.
surely you checked ECT first for 180F hot. if fails the 7 year old thermostat is bad, as all are that old so says president of STANT in his youtube tour.
there are only 3 sources of fresh air,
all closed, there is no AIR , and engine must stall.
other oddities, ?
the EGR gasket is metal, if missing sucks huge fresh air
as does all 4 injector base cushions all cracked and old.
im sure your 96 has the EGR monoport TB, right> ? 95 is quad port , and 96 introduced the new TB with top center EGR mono port EGR injector .
you did not state how car drives, besides, idle creap, how is engine power in all modes of driving, slow /fast, hills, accel? and that> power wise engine power ?
AIR fuel ratio.
that ISC unplugged would stall any good engine hot.
when hot the this engines, has no air supply at all with ISC unplugged, that is a fact, (ISC closes at 150F) if thermostat is bad, well that be first, things first.
hot engine air, all
1: TV (zero air here) if cables slack there must never be air flow here, TV = the brass throttle valve in the TB.
2: IAC closes at 150F, but hot engine is 180f or more, your scan tool tells you ECT reading 180f is normal not 140f ever hot. easy no, just glance at OBD2 ECT readings LIVE.
3: ISC, is electronic idle control and is 800RPM hot, unplugged it closes 100% by its own springs inside, and all air ENDS NOW and the engine must stall.!!!!
if not we then find out why.
surely you checked ECT first for 180F hot. if fails the 7 year old thermostat is bad, as all are that old so says president of STANT in his youtube tour.
there are only 3 sources of fresh air,
all closed, there is no AIR , and engine must stall.
other oddities, ?
the EGR gasket is metal, if missing sucks huge fresh air
as does all 4 injector base cushions all cracked and old.
im sure your 96 has the EGR monoport TB, right> ? 95 is quad port , and 96 introduced the new TB with top center EGR mono port EGR injector .
you did not state how car drives, besides, idle creap, how is engine power in all modes of driving, slow /fast, hills, accel? and that> power wise engine power ?
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