No, that has nothing to do with idle speed.
No, but a bad alternator will.
A bad camshaft can cause your engine to idle high and overheat. A fuel injector pump that needs to be adjusted can also cause the same problems.
High idle, irregular idle, difficulty in starting the vehicle, etc.
You can not adjust the idle screw, it is sealed off at the factory. If you are having a high idle problem check for a vacuum leak or a bad idle air control valve. These will commonly cause a high idle.
Other than resetting the ECU, disconnecting the battery should not cause the bad idle. You have reset the ECU and it may need some time and driving cycles to idle correctly. But I am doubtful this is the problem. I would suspect this is just a coincidence, and you have another problem.
A weak battery or a bad throttle position sensor can also cause erratic idle. If it turns over slow, the battery needs replaced. If you tap the tps and the rpm's change , the tps is bad.
possible cause of high idle could be that your idle contol switch / valve has carbon build up on it. remove and clean with carburetor cleaner. let it dry completely before re-installing it. idle should come down if not it has probably gone bad and need to be replaced.
Bad idle may refer to many things. Generally it means the idle is too high, too low, or there are misfires.
bad iac valve or vac. leak
Bad wiring can cause a short in the radio. Bad battery will not.
That would be the alternator, voltage rgulator, or even a bad ground. Email MYCOMATT167@YAHOO.COM follow up
Hi there, there is no idle adjustment on this vehicle. The most probable cause is a leaking throttle body gasket, or a bad Idle air control. A stuck open thermostat will cause a high idle in cold climates. Good luck and let me know you find wrong.