Help. The check engine light goes on all the time on my car sometimes only for a couple of seconds, sometimes for minutes, but recently it's been lit for upwards of an hour (my commute to work). I've done the diagnostics thing with the black box in the engine compartment and every time it's due to the water thermosensor. What can I do to fix this?

Thanks!

 

Ummm... replace the water thermosensor?

 

Anybody got the part # or a spare?

Thanks!

 

lol..

I believe the part number is: F202-18-840A

 

I read in another thread that this part was available at Autozone. Anybody know what part # it is there?

Thanks!

 

I just did a search on Autozone. They have a part described as a "COOLANT TEMPERATURE SENSOR for a
1993 MAZDA RX7". It's a Wells Part No. SU4007. Does anybody know if this is the right part?

Thanks!

 

Just a note, the Autozone part works. PITA getting to the water thermosensor though, it's behind the water pump.