97 running bad

[bcar240]

We've got a '97 Pathfinder that is running rough and is hard to start in the cold. It throws codes for a bad knock sensor and low engine speed. I think I should start off by replacing the knock sensor, good idea?

[NISTECH]

Knock sensor wont cause a poor run condition. I would take a look at the coolant temp sensor connection, maybe test its resistance cold and see if its within spec. Also with the car warmmed up check the base idle and make sure its not to low.

[bcar240]

it idles ok when warm, just really crappy when cold, even dies sometimes if you don't keep them up. I will check on that coolant temp sensor when I get a chance. Thanks!