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Thread: Throttle acting strange

  1. #1
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    Throttle acting strange

    I had a weird experience today. I started my Abarth and it revved up to around 3500-4000 rpm for just a few seconds. It has never done that before. Is something going bad between the accelerator and the throttle gizmo? Maybe it was just a one time thing or is this going to keep happening?
    2013 Fiat 500 Abarth Rosso, with white mirror caps and stripes.

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    It could be a number of things. Obviously what you want to do first, cheapest resort, is to check the electrical connection going to the gas pedal. Most newer cars are drive by wire, not cable driven. Check for any impurities in the connector and blow out any debris or water bodies that may be in the connector. If nothing is wrong at the connector, the second step is to remove the engine cover, intake, and the battery/tray/ecu (easy access).

    From here, you’ll want to check the connection to the tps (throttle position sensor). Oddly enough I’ve gone through this recently with a failed MPx ported throttle body. If the connector is not an issue, you could have a faulty sensor. There really is no other reason for your one time acceleration on start up.

    if nothing has helped, I suggest taking it to a stealership and see if there is anything they can do.
    2013 Fiat 500 Pop (Grigio) - Totaled!
    2013 Fiat 500 Abarth Beats Ed. (Grigio) - Sold!
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    The first thing I done was check for dirt or water at the connector on the accelerator. It was a little bit dirty so I blew it out with compressed air. Two days now and no more rev up at starting. I went through the same thing on my VW.
    2013 Fiat 500 Abarth Rosso, with white mirror caps and stripes.

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    Quote Originally Posted by FootScoot View Post
    The first thing I done was check for dirt or water at the connector on the accelerator. It was a little bit dirty so I blew it out with compressed air. Two days now and no more rev up at starting. I went through the same thing on my VW.
    I am almost guaranteeing that the tps is bad. A replacement throttle body is in store for you. You’re in luck, someone in the for sale section is selling an MPx ported throttle body for cheap!
    2013 Fiat 500 Pop (Grigio) - Totaled!
    2013 Fiat 500 Abarth Beats Ed. (Grigio) - Sold!
    2004 Ford Mustang SVT Cobra (Redfire Metallic) - 10K mi.
    1991 Ford Mustang LX Notchback (Black) - 12K mi.

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    Check your floor mat...

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    Quote Originally Posted by Velodrome View Post
    Check your floor mat...
    I can’t believe I didn’t even think of that! I had that happen a couple times. For me, the clutch pedal got stuck.
    2013 Fiat 500 Pop (Grigio) - Totaled!
    2013 Fiat 500 Abarth Beats Ed. (Grigio) - Sold!
    2004 Ford Mustang SVT Cobra (Redfire Metallic) - 10K mi.
    1991 Ford Mustang LX Notchback (Black) - 12K mi.

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