This Mazda has a rough running complaint only at a hot idle...shouldn't be that tough to pinpoint the issue here, right?
Another great lesson on how many different variables can cause a similar symptom.
In Part 1 I cover these methods:
-Testing a 2-wire Idle Air Control motor
-Verifying cam timing with in-cylinder pressure transducer
-How important the test drive really is...
Enjoy and stay tuned for Part 2!