Some Models require a "quiescent current retention unit" to be connected prior to removing the battery cables.
the computer needs a reset
Change idle speed contol sensor Uncool the battery for five minutes to reset the computer.
if you are trying to change it while it is running it always needs an earth for the ecu otherwise there should not be any reason connected with the battery to cause idle problem
How high is your idle? idle should be 800rpm good oil pressure is obtained at this idle
Idle may have to be relearned. Did it recently go dead or did you change battery?
changed battery in 2000 chrystler sebring and now will not idle
Does not have one. Idle speed is controlled electronically through an idle speed control module.
No, that has nothing to do with idle speed.
To change the idle pulley on a Citroën Picasso, start by disconnecting the battery to ensure safety. Remove the serpentine belt by loosening the tensioner pulley, then detach the idle pulley by unscrewing it from its mounting. Once the old pulley is removed, install the new one by securing it in place and reattach the serpentine belt, ensuring proper alignment. Finally, reconnect the battery and check the installation by running the engine briefly.
To change the idle air control valve on a Renault Megane 2, first, ensure the engine is off and cool. Disconnect the battery and remove the air intake duct to access the valve. Unscrew the old idle air control valve from its mounting, disconnect the electrical connector, and install the new valve by reversing the process. Reconnect the battery, and start the engine to check for proper operation.
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.
On my Mercedes sprinter the cause of the fan belt vibration at low idle speed was the pully on the alternator.This pully should ratchet in one direction.