'86 prelude Si 2.0: Ok so after much tinkering, I finally got this one to show a trouble code (6), and now have these 2 questions; There appear to be 2 coolant sensors at the thermostat housing. I assume one for the fans, and one for the ECM. Question 1 is, "Which is for the ECM,green or neutral color connector?"
Question 2 is,"Can a bad coolant sensor prevent a hot engine from starting?" BTW, the starter is doing its job quite well.

 

This would be a great investment for you:

http://www.helminc.com/helm/product2...003&itemtype=N

http://www.helminc.com/helm/product2...3EL&itemtype=N

These are factory Honda manuals with detailed drawings and wiring diagrams

 

Actually, Im trying to fix the car for a broke friend.That's why I'm seeking help on here

 

I have Helm's 800 # in my phone

 

Oh OK, not a lot of guys here that know much about 2nd gen Preludes. You may have better luck on p r e l u d e p o w e r .com (without spaces), there's a bunch of 2nd and 3rd gen people there.

 

Ok Thanks