04-27-2016, 08:28 AM
seem idle regulation is not happening
best is to turn on all accessories at once, hot idle. (not A/C)
the rpm sags say 100 or less and corrects in 1sec, to 800, corrects to before rpm. before big elect. loads.
I do HL, brakes and blower at one fell swoop.. on 5sp. (left hand, right hand and stomp) rpm can twitch down and correct..
if it drops, then the ISC is not regulating, check idle switch first. goal is max load on alternator.fast and see results of RPM changes.
The ecu watches rpm like a hawk and if does. open the isc real fast. (if awake)
the 2000 ohms causes ECU to see hotter coolant, so would go leaner. 60c water shows 68c water (lied) this should be trivial change .
2000 across 580 =450ohms.
not a big change at all but at 0c it be huge lie. 0c reads 45c, huge change and vastly leaner.
best is to turn on all accessories at once, hot idle. (not A/C)
the rpm sags say 100 or less and corrects in 1sec, to 800, corrects to before rpm. before big elect. loads.
I do HL, brakes and blower at one fell swoop.. on 5sp. (left hand, right hand and stomp) rpm can twitch down and correct..
if it drops, then the ISC is not regulating, check idle switch first. goal is max load on alternator.fast and see results of RPM changes.
The ecu watches rpm like a hawk and if does. open the isc real fast. (if awake)
the 2000 ohms causes ECU to see hotter coolant, so would go leaner. 60c water shows 68c water (lied) this should be trivial change .
2000 across 580 =450ohms.
not a big change at all but at 0c it be huge lie. 0c reads 45c, huge change and vastly leaner.
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