General & Model Specific Technical Forums > Twin Cam
Head Temp Sensor
iclick:
--- Quote from: rbabos on Saturday, August 04, 2012. 01:14:35 PM. ---Will do on the et sensor change. As for the tps the blade is opened some to start with with the screw as the stop. The ecm will establish this as 0 when the switch is turned on and all idle rpms will be estabished by the iac from then on with reference points it uses.
--- End quote ---
If that's the case, why is mine showing >0% when first started when this syndrome happens? I'm not touching the throttle, at least not before checking the TP gauge on the PV.
glens:
I think he intended to convey the notion that the ECM considers whatever it is to be the equivalent of "0", not that it resets itself like what one might do with a Power Commander or so.
rigidthumper:
A broken throttle shaft is about the only time I see TPS>0 when at idle on cable drive TBs. I have seen erratic TPSs where they have a 'blip' when steady rolling throttle open.
rbabos:
--- Quote from: rigidthumper on Saturday, August 04, 2012. 09:23:07 PM. ---A broken throttle shaft is about the only time I see TPS>0 when at idle on cable drive TBs. I have seen erratic TPSs where they have a 'blip' when steady rolling throttle open.
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All the logs I have between two engines on this 07 show the tps at 0% at idle. Tps volts ranged from .53 to .61, depending on where the blade was set or where I adjusted the tps sensor to.
Ron
JBarrettB:
A rise in or an erratic idle when the engine is warm tends to make me think temp sensor. Still in range but bouncing around causing issues. Seem to be pron to failure in my experience.
JB
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