ECT2 stuck at 35 degrees

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Hany
Posts: 28
Joined: Sat Oct 07, 2017 2:56 am

ECT2 stuck at 35 degrees

Post by Hany »

I've noticed that ECT2 temp is stuck at 35 degrees leading to both oxygen sensor and catalyst monitors not running, with my scan tool I viewed ECT2 sensor voltages which changes from 3.6volts at cold start down to 1.7 volts at normal operating temps but the parameter for ECT2 temp never changes from 35 degrees, I replaced ECT2 sensor at the bottom of the radiator and retested and nothing has changed.
KTuner
Site Admin
Posts: 3745
Joined: Mon Jul 22, 2013 8:13 pm

Re: ECT2 stuck at 35 degrees

Post by KTuner »

If the voltage is changing then it sounds like you have it disabled. I'm assuming you've tried returning to factory.
Hany
Posts: 28
Joined: Sat Oct 07, 2017 2:56 am

Re: ECT2 stuck at 35 degrees

Post by Hany »

I don't have it disabled, interestingly I noticed that ECT2 changes normally when logged by ktuner but it stays at 35 degrees when monitored by my scan tool!

I will check with a different scan tool later today, I'll also re-flash the ecu and see what happens..
KTuner
Site Admin
Posts: 3745
Joined: Mon Jul 22, 2013 8:13 pm

Re: ECT2 stuck at 35 degrees

Post by KTuner »

If it changes in KTuner then it is functioning properly. That's good news.
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