360 misfire | FerrariChat

360 misfire

Discussion in 'Technical Q&A' started by ferris2, Oct 9, 2008.

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  1. ferris2

    ferris2 Rookie

    Jan 5, 2006
    13
    Hi all
    I've got a brain teaser of a problem. I've got a Ferrari 360 spider 2001 model done 80,000kms. I've got a misfire on no. 2 cylinder. I've replaced spark plugs, I've checked for spark at the coil pack, found all ok. I swaped coil packs found no difference. I checked wiring to and from the coil pack all ok. Than I've checked the injector found ok, checked the wiring to the injectors found ok. Swaped injectors still have misfire at no. 2 cylinder. With the SD2 I've got the errors Cyl 2 Major Emissions P0302, Cyl 7 Major misfire P0307, Multiple misfiring recognition P0300, Fuel self learning poor P1124, Catalytic Convertor temp Protection P1446, Catalytic convertor temp P1445. I've compression tested all cylinders and I'm getting 180 psi plus in all cylinders. I'm at the stage of pulling the Rocker covers off and checking if the hydrulic lifter is working on no. 2 cylinder. Just want to know if anyone else has had this problem on a 360 before cos I'd hate to think the lobs on the inlet cam are worn down.
     
  2. FERRARI-TECH

    FERRARI-TECH Formula 3

    Nov 9, 2006
    1,677
    Los Angeles
    Full Name:
    Ferrari-tech
    If all is as you say, I would do a cylinder leak down test before you do any engine D+A. It may give you a hint as to whats going on.
    keep us informed with what you find, sounds like a good one.
     
  3. Dr_ferrari

    Dr_ferrari Formula 3
    Consultant Professional Ferrari Technician

    Nov 2, 2003
    1,071
    Pocono Sportscar
    Full Name:
    Jim McGee
    Check the intake manifold gasket for cylinder#2. most likely the gasket was broken and causing the cylinder to go lean and misfire.

    very common.

    Best regards, Jim
     
  4. brian.s

    brian.s F1 Rookie
    Professional Ferrari Technician

    Nov 3, 2003
    3,809
    Midwest
    Full Name:
    Brian
    I agree, smoke testing for leaks is becoming an early diagnosis tool for me. It's a quick cheap test that can eliminate or identify problems very easily.
     
  5. fmaderi

    fmaderi Formula Junior

    May 8, 2005
    258
    clearwater Fla/NY
    Full Name:
    frank maderi
    smoke it . now i want to hear what some DIY has to say . lol best of luck forza
     
  6. ferrari.ace

    ferrari.ace Karting

    May 25, 2006
    232
    So.Cal.
    Full Name:
    Adam Cox
    Even though it's the best tool for the job, the SD-2 can be quite misleading for this diagnosis.
     
  7. saw1998

    saw1998 F1 Veteran

    Jun 8, 2008
    8,237
    San Antonio, Texas
    Full Name:
    Scott
    I love to listen and learn from the pros.....
     

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