348TS Startup | FerrariChat
Buy

348TS Startup

Discussion in 'Technical Q&A' started by dpsuk999, May 23, 2004.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. dpsuk999

    dpsuk999 Formula Junior

    Feb 12, 2004
    264
    Leeds UK
    Full Name:
    Dave
    #1 dpsuk999, May 23, 2004
    When I first start up, for the first 5 mins until the engine is warm there is the fantastic what i can only describe as 'burbling' sound partcularily at the air intakes. This sound stops once the engine has warmed up but was wondering if the sound can be made anytime and if so what do i need to do??

    thanks,
     
  2. RAYMAN

    RAYMAN Formula Junior
    BANNED

    Mar 10, 2004
    315
    Oklahoma
    Full Name:
    Raymond Santilli
    #2 RAYMAN, May 23, 2004
    That's normal, there's some type of valve at the exhaust, that opens and closes on temperature I beleive.
     
  3. 0123

    0123 Rookie

    Apr 11, 2004
    24
    #3 0123, May 23, 2004
    That sound is part of an emissions control that injects air into the exhaust until the catlytic converters come up to proper temperature. This decreases the pollutants put out of the exhaust when the engine is cold. This must have been a result of a US exhaust standard that Ferrari had to meet.

    I do not know if you can make this system stay on after the car is at normal temperature.
     
  4. davey_jones

    davey_jones Formula Junior

    Sep 28, 2002
    781
    wherever it's sunny
    Full Name:
    Dave
    #4 davey_jones, May 23, 2004
    FWIW -for some reason I seem to recall someone calling them "smog pumps"...? Think it was Noel....
     
  5. ShanB

    ShanB Formula Junior

    Jul 9, 2003
    547
    Tejas/Europe/Desert
    Full Name:
    shanb
    #5 ShanB, May 23, 2004
    It's the secondary air injection system. The ECU looks at the coolant temperature (cold) and activates solenoids which bleed extra air from the filter box directly into the exhaust manifolds just after the exhaust valves. The control for this system is through bank 1-4. This is what I know for US-spec models, however Euro cars may be different.

    Shan
     
  6. dapper

    dapper Formula Junior

    Nov 10, 2003
    711
    Bristol, UK
    Full Name:
    Dave
    #6 dapper, May 25, 2004
    Ah, the smog pump to frig the emissions, remember one of those on my Porker 928, can't say I've noticed one on my Euro 348 though.
     

Share This Page