90 Honda accord starting problem
 

Hi All, we have a 90 accord in the shop that would not start.
After making sure it was not the timing belt,I pulled a plug wire to check
for spark.
With the plug wire off, and a piece of metal in it to check to ground for
spark, there was none, then all of a sudden it started.
At the customers request,we changed the plugs, wires, dist cap and rotor.
Car started and ran fine for a while, but later would not start. Customer
let it sit for a while, and got it started.

Now I recall I had a 87 accord(My own car) about 7 years ago,that did the
exact same thing.. Pull a plug wire off and it would start.
I talked to this mechanic, and he had me change some type of coolant sensor,
and that fixed it.
The car will run as long as you want it to, but just give's us trouble on
restarting.
That was the same way my 87 did too.

But I cant recall just what it was called, or where it was located.
Does any one have an Idea on this problem? or what the sensor is called, and
it's location?
The motor is a 4 cylinder.
Thanks, Tony