Originally Posted by
senor honda
Don't some cars have the temp sensors on the bottom
of the radiator?-Bob
Yes some do (I know for a fact some of the Nissan Altimas do) and some have two..
In any case, if the B18A1 is anything like the B18B1, which I am pretty sure it is the same on either one, then this is where the ECT sensor is located. Also make sure to check the sending unit when troubleshooting, they seem to like to give out around the same time as thermostats and ECT sensors.