My 2006 Tribute stalls or runs rough when I come to a stop. It there a sensor that controls the idle?

You need to replace the mass air flow sensor. It controls the air and gas flow.

check idle control valve if bad idle too low car will stall

Clean the throttle body and check or replace the idle control valve. Also check or test the throttle position sensor.

look for vacuum leaks

Although is could be a fuel filter, it could also be a fouled spark plug, or a bad spark plug wire. Once you've ruled these things out, the problem could be the TPS (throttle position sensor). This controls your idling speed under all conditions. A faulty TPS will usually idle fine when the engine is cold but once warm, will tend to sputter and in some cases, stall.

IAC problem . You have a problem with you idle air control valve. So when you stop at a stop sign the RPM goes to low and you stall out. IAC controls the desired speed necessary to keep the engine running.where is this sensor at is at the rear of the engine compartment under the thtottle valve. Here is what you need to inspect for. If you have a vacuum leak in you engine system, the IAC cannot compensate or control and you get rough idle. Check any loose vacuum connections .

Here are the common cause of surges, cold stalls, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours.
To correct this problem I want you to get a can of intake cleaner (ABOUT $5.00) from any local auto parts store like NAPA or Carquest, do not use carburetor spray, intake cleaner only or u will damage the Teflon coating inside the throttle valve and air bypass valve, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

if when running it runs well apart from idle problem i would suggest you have the throttle body and idle speed control valve cleaned out and add a fuel system cleaner to fuel tank also check wireing to idle speed control valve

1. will it stay running if you foot is sligtly on the gas.
if so common problem it the IAC valve located on top of the throttle body. it controls ait into the engine when throttle is closed.
2. do you hear loud fog horn like sound or hissing. this could indicate a vaccum leak.
3. are there any performance problems while driving.

my best guess would be the IAC (idle air control) valve

idle air control is jammed close little sensor on top of air intake gently tap it or clean throttle body with air intake cleaner hope it help fixya our post thanks pierre