Quote:
Originally Posted by 80stech
Maybe this partly is due to you paying more attention after changing the coolant sensor??Heater valve is open by default and should close when you select the lowest temp. Map cooling is only active when the DME wants it for emissions. Otherwise I think if the engine really isn't warming up to where it should be, the thermostat is probably number one suspect.
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Normally I’d say you were correct, that I only noticed it because I just worked on the system. But after my self induced overheat, near catastrophe after the motor swap I actually watch the temps quite often.
Good info on how the valve works, I didn’t realize it was open under normal ops and sending coolant into the heater core. So my failed valve theory doesn’t make sense. T-stat change in order it seems.