Join Date: Sep 2008
Location: Fruitland Park,Florida
Yes, the (cts) coolant temp sensor can cause all sorts of running problems. This is the sensor that tells pcm how hot coolant is. The sensor usually shows very low temp when it fails. This causes pcm to add way too much fuel to mixture. Car runs badly or not at all.
The temp gauge uses a different sender for it's temp readings.
If you have a scanner that shows running sensor data, you would see the cts temp not matching or even being close to gauge temp once coolant begins to get hot.
Last edited by cocobolo95; 06-19-2016 at 04:48 PM.