Backfire!! Something new with my 308! | FerrariChat
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Backfire!! Something new with my 308!

Discussion in '308/328' started by Formula Uno, Jun 19, 2010.

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  1. Formula Uno

    Formula Uno F1 Veteran

    Oct 8, 2008
    6,659
    New York City
    #1 Formula Uno, Jun 19, 2010
    Last edited by a moderator: Jun 19, 2010
    Last few times out, I noticed that my 1980 GTSI is backfiring while at idle. Nothing crazy, but a good "Pop" every 30 seconds or so. It has never done this before.

    Maybe I'm being a bit paranoid now, but the car does seem a bit "rougher" when begining to accellerate.

    What do you think is going on here??

    Thanks!

    I forgot to add that it does not backfire when my foot is on the gas, but will if I coast. The car also has a Tubi.
     
  2. Formula Uno

    Formula Uno F1 Veteran

    Oct 8, 2008
    6,659
    New York City
    #2 Formula Uno, Jun 20, 2010
    Anyone??
     
  3. twright

    twright Karting

    May 15, 2005
    225
    Indianapolis USA
    #3 twright, Jun 20, 2010
    It depends on the nature of the backfire. If it "bangs" out the exhaust, look for an exhaust leak. If it "sneezes" up through the inlet, its something else.

    I defer to others here for more info.
     
  4. RBV24961

    RBV24961 Formula Junior

    May 23, 2006
    290
    Rye, New York
    #4 RBV24961, Jun 21, 2010
    Mine did this when I needed new wires and extenders. It would idle with a "pop" out of the exhaust every 30 seconds or so. Have you checked for a fouled plug causing gas to explode in the exhaust system?
     
  5. WJHMH

    WJHMH Two Time F1 World Champ
    Silver Subscribed

    Sep 5, 2001
    26,491
    Panther City, Texas
    Full Name:
    WJHMH
    #5 WJHMH, Jun 21, 2010
    Check for holes in the exhaust, I've seen the issue fixed with a sheet metal screw & some JB weld.
     
  6. mikael82

    mikael82 Formula Junior

    Nov 18, 2007
    869
    Finland
    Full Name:
    Mikael
    #6 mikael82, Jun 21, 2010
    Try to take cold start injector (electric) wire out. It is that blue thing pasanger side of inlet plenum.
     

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