Hyundai Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is***** is actual temp outside? Have you replaced the cts yet? Thanks.
Are you checking the temp readings with scantool or dash? Does cts ever change as vehicle warms up?
Neither of them share the same circuit so it sounds like problem is either your ECM or the sensor. I'd start by replacing the cts to see if that helps. If not, next step will be to check wiring between ECT and ECM, if good replace the ECM. Here is a wiring diagram to help with testing. Let me know if there is anything else I can do to help. Thanks.