Question:
What is the problem of up and down idling on my motor when its became hot on my 1993 Honda Accord.
Answer:
Could be one of two things. Either the IAC valve or the fast idle valve.
Both are located on the intake manifold. Right next the the fuel rail. I would suspect the fast idle valve first because it controls the idle once the car is warmed up.
Both are located on the intake manifold. Right next the the fuel rail. I would suspect the fast idle valve first because it controls the idle once the car is warmed up.
