The idle is controlled by the powertrain control module ( computer )
You cant. The idle is controlled by the ecu.
The idle speed is controlled by the powertrain control module ( computer )
sounds like you need some freon.
The idle speed is computer controlled
What causes back firing on a ford explorer and it to idle rough and want to cut out when you try to give it gas.
Has it had a chance to relearn its idle since disconnecting the battery cables ?
possibly the throttle position sensor the sensor will also change the shifting pattern
Its right near your throttle body.
Replace the spark plugs and air filter. Inflate the tires to specification. Idle less, accelerate easy, drive at a slower speed.
The choke mechanism on your 98 Explorer could be sticking. The EGR valve could also not be functioning right. Either of these issues could cause the rough idle problem.
Trouble code P1504 means: Idle air control (IAC) circuit malfunction
On most models, the Idle Air Control (IAC) valve is located on the throttle body.