P0117 Code ECT low circuit input

[sadamek]

Hey guys my cel came on this morning when driving to work and this is the code that came up when I scanned it and looked it up on alldata. Has anyone had this code and had a problem with it? Do u know how to fix it? I'm going to clear the code and see if it comes back. My car also idles very low and dies sometime when i put the car in nuetral. I don't know if these have anything to do with eachother but was just informing you incase they do. Thanks

 

[mazdaspeedp]

i thought that code was for the oxygen sensor not working i dont remember though forsure

 

[dingo06]

i had the same problem, what did u do to fix it?

 

[sadamek]

Ok so my coolant biols over in the overflow tank as its getting to hot but yet my temp gauge inside the car reads normally. If I change out the coolant temp sensor will it fix this problem or do you know what will?

 

[sadamek]

Changed my temp sensor and it fixed the problem and It also fixed the problem or my car almost dieing/cutting out when in nuetral

 

[JDM Sam]

boiling is overheating, hope you didn't warp the head or blow a gasket.

when you get any low circuit codes its usually a bad sensor or connection.

 

[sadamek]

Ya i know i checked for headgasket and i haven't and i'm not leaking so i don't think the head is warped at all. what other sensor besides the coolant temp sensor could it be?

 

[msp2fast]

OK i looked this up on my mazda shop manual an this is what is says:

DTC P0117 = ECT(Engine Coolant Temperature sensor) circuit low imput
-PCM monitors ECT sensor signal at PCM terminal 38. if voltage at terminal 38 is below 0.20V,PCM determines that ECT sensor circuit has malfunction.

POSIBLE CAUSE

-ECT sensor malfunction
-Short to ground circuit between ECT sensor terminal A and PCM connector terminal 38
-ECT signal and ground circuits are shortened each other
-PCM malfunction

Hope that helps u out or some one else can coroborate on it(thumb)

 

[sadamek]

Ya i changed the sensor and that fixed the problem there but my coolant still gets hot and boils over ocassionally. What else could it be? HELP!! I also changed my thermostat

 

[TheMAN]

replace the radiator cap!

 

[sadamek]

Alright I will try it. Anything that might work to fix this problem bc I don't want to hurt my motor!

 

[dtiong]

I am having the same issues and the coolant is boiling in the reservoir. MY mechanic replaces the temp sensor and still the same problem. Next thing to replace is the hemostat.