Question about 1993 Ford Probe

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1993 (2.0l 4 cyl) Ford Probe Wont Idle when warm.

I recently ran into problems with my ford probe idling rough and occasionally dying when you would stop quickly the rpm would go down to around 80 or lower before going back up to around 500 or stalling. Yesterday I checked all the electrical connections, cleaned the MAF sensor, and the IACV then I set the ECU to recalibrate (disconnecting negative battery cable and holding the brake pedal in). After that the car ran great for a bit it idled strong around 750 and wasn't sluggish feeling at all, until about 20 minutes of driving then it refused to idle period you let off the accelerator and the car dies then once this happens its almost impossible to start the car it just cranks then dies and the fuel cutoff light comes on, I've checked the fuel cutoff switch in the back and it hasn't been activated and if the car is cold it seems run fine until about 20 minutes of driving.then starts doing this. Any info would be much appreciated this is really a headache

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  • josh856 Mar 13, 2009

    I changed out the IACV from a parts car and now it's working 99% great, did the engine computer reset and it idles around 900-1000 and everything feels fine. Although now my weirder problem is the car will rev itself up to about 2000 rpm when its put in park or neutral its like someone is rocking the pedal with there foot where it goes up to 2000 rpm then back to 1500.over and over. The car is driving now at least but is this normal after resetting the engine computer?

  • mike loshbough
    mike loshbough May 11, 2010

    is this a 2003 check on back side of engine the pcv hose probably is torn follow from the valve in front go to the back

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Josh, Did you output the car's diagnostic codes before you reset the computer?
Just to confirm: your car has the "FS" engine - 1991cc double overhead cams?
built on the Mazda "GE" platform?
does your car have an "engine check light" or "MIL" on the dashboard? if so where and what does it look like and what does do ? ie: comes on when ignition is turned on & goes out after engine starts. or comes & goes out after x seconds. etc etc
are you 5sp manual or auto trans?

does your car have a diagnostic plug with a flip open lid just behind the battery near the front left suspension tower?


Posted on Apr 25, 2009

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Posted on Jan 02, 2017

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