Idle is high after changing the timing belt

I suggest disconnecting the mass airflow sensor and see if the car idles. If the car starts then you have a bad sensor. The next step would be to inspect data on scantool and look for scewed coolant sensor reading . coolant sensor readings should not fluctuat. Good luck

I’m happy to assist further over the phone at https://www.6ya.com/expert/richard_9a19ee73dfa4686a

wireing problem on o2 sensor take out o2sensor and start then reply me what it does [email protected]

where ever you had the belt change, take it back, and tell them they didn't leave it right, because it seems the timing is off. this happens when the timing belt is changed and not put properly. even if its just one tooth off, it can cause this problem. and for future transmissionfluid changes, the transmission should never be flushed as it can damage important components within the transmission. but like i said, have the timing belt refitted, because this is going to keep going on if its not fixed. hope this helps, goodluck

Check the throttle plates and idle speed control motor make sure there both clean.

Also check manifold vacuum at idle the best you can hold an idle. I have run into timing belt being one tooth off and engine still ran fine. But the vacuum was low that's how I could tell the belt was a tooth off.

is the timing back to the factory setup? sometimes if the timing is still off from what it should be, then it can cause problems like poor acceleration or running at high idle.

clean throttle body and make sure iac is not plugged up with carbon.

Should be on your 2nd timing belt. If you have the 4cyl engine there is a balance belt that needs to be changed also. Mitsubishi recomends replacement at every 60,000 miles, your 10k over. Most of the time these motors are not interferance engines, But I have seen a few that broke a belt at high rpm that did bent valves......

could be an idle controll sensor...maf sensor or o2 sensor....run a good carb/fuel ingector cleaner through with with some high test gas, do this for you next 2 fill ups, one can of cleaner per full tank...if it doesnt work.. then one of those senors is playing tricks with ya...In worst case the timing belt is slipping..
hope this was helpful !

try checking the voltage regulator
im not sure where itis exactly
but try getting that checked out

You probably disturbed the timing between the crankshaft and the camshaft if you loosened the timing belt.