What's the stock temperature for your model and location in the world?Did using the 192 tstat work? Where can I find a 192 tstat? Would a 195 be OK?
Post a link to where you heard/read that.2000 Sephia: I do plan on changing the tstat, just to make sure it's working properly. However, I also read about using a 192 tstat to avoid getting the check engine light. Does anyone have a fix?
I guess the stock temp. is 180. However, I read on here this is a common code on my model due to the ecm and a fix is to use a 192 tstat.
That thread is not "your model".
That first hand knowledge would be to install a new thermostat with a high probability of that resolving the code, and in the unlikely event that it doesn't, investigate further for possible things like a faulty temperature sensor [the one used by the ECU, not the gauge].Plan too LOL Just looking for first hand knowledge on this issue.
Yes, but same T8D engine plus same ECU management from june 1999 to march 2004, so the information found there, applies.That thread is not "your model"...
Yes, maybe...That first hand knowledge would be to install a new thermostat with a high probability of that resolving the code...
Certain T8D engines has those two temperature sensors, but later sephias likely has only one temperature sensor for Both functions; check my quoted post below:... in the unlikely event that it doesn't, investigate further for possible things like a faulty temperature sensor [the one used by the ECU, not the gauge].
Single Coolant Temperature Sensor, Setup:
Dual Coolant Temperature Sensors, Setup:
... found this on another fourm: KMA has since received reports of DTC P0128. they found the production start dates change the thermostats, interchangability codes (ITC) and the ECM and thermostat "set" part numbers. Previous information in the 2001 parts catalog may have caused inadvertant use of incorrect parts.
ok here goes.
Determine if the vehicle falls in the production date range for THERMOSTAT MONITORING. Vehicles built before 09/18/00 (4DR) or built before 10/02/00(2DR) were NOT equipped with thermostat monitoring. If you have a Kia with a P0128 code built before those dates wrong parts may have been installed. Rather then chasing the other codes it will generate, first check the following.
2.Check installed thermostat and P/N. Vehicles built before 06/17/00 it should be equipped with thermostat P/N OK9FC15 171, KE5D3 15 171, or 0k01C 15 17Y. Vehicles built AFTER 06/17/00 should use P/N 0K013 15 171 or set P/N 0k01C 1517Y.
The earlier ones are distinguished by a secondary thermostatic valve on them, the newer ones have a little rivit floating in a hole on them, also the newer one is a 195 degree thermostat.
3. Check the Engine Control Module P/N on label on module. The P/N for the ECM without Thermostat Monitoring is: OK07A 18 1881 for both the 2dr and 4dr models. The P/N for ECM's with Thermostat Monitoring are: 39100 3X100 (4dr) and OK07A 18 1881A(2dr). use the right set with the right ECM. This is why the P0128 code pops up.
so you have to have the right thermostat with the right engine module. I also changed the intake air monitor sensor. Be sure to use a new gasket, as the gasket material also changed from paper to a rubber/paper type , add a little Permatex blue gel. seems to working now.
The intake Air temperature rationality check (we all need one of those don't we) monitors the sensors circuit as well as informs the ECM weather the signal matches the expected value or range for the circumstances. For example if the IAT signal reads extremely high or low, the ECM would conclude that the signal is incorrect and would store a DTC PO111. The ECM can also determine the faulty sensor by comparing the IAT sensor signal to changes in coolant temperature over a certin period of time
Personally, if your cooling system is in order, install a 195F thermostat.
The other thing I would do is check the connector and wiring at the plug and make sure that all is clean and solid.
Hope some of this helps.
Keep us posted on your results.
Yes:... Is there any downside to running a 195 vs 180??