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89_ed3_love

temp gauge says hot but car isnt overheating..code 6 ecu?

hey guys...well i have this problem..
where my car showed a code six on ecu and thts why my chck engine lite was on..i researched it..said it meant coolant temp sensor..so i bought one...replaced it..now the lite doesnt come on BUT! on a hot day wen i turn the key to ready strt..the temp shoots up to hot and stays there till i turn it off. on a cold day it stays dwn for awhile then shoots up again after a couple min...my cars fine and not overheatin..what else can it be??
Confused
~Sp33~

A poor connection to the sensor more than likely.
89_ed3_love

which sensor? coolant temp sensor or the one to the gauge?
~Sp33~

The one to the gauge
Edison Carasio

My CRX did something similar.  I would turn the key to on but not start the car and the temp gauge would be in the red even though the car hadn't even been started in a day.  I replaced the sensor in the cylinder head right under the distributor, bled my coolant for good measure and it was fine after that.  I just went to the junk yard and grabbed as many of them as I could find.  just need tools to remove a dizzy and a deep 12mm socket IIRC. It's the one labeled gauge sensor in this pic.



If you're throwing a code, I guess yours might be the other one in the pic.  Maybe try replacing both and resetting the ECU?

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