Where is the location of toyota previa 1997 engine idler
If your idle is high or low, what is most likely giving you the issue is your IAC or Idle Air Control Valve. Buy some throttle body cleaner, remove the valve and spray down the inside of it really well. While your at it, you may as well spray down the inside of your throttle body also. A dirty IAC and throttle body will give you idle issues. It looks like this.
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