So what is going on, engine light on and exhaust tips dirty? | FerrariChat

So what is going on, engine light on and exhaust tips dirty?

Discussion in '360/430' started by SeaNile, May 26, 2010.

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

  1. SeaNile

    SeaNile Formula Junior

    Jan 25, 2010
    679
    West Chester, PA
    Full Name:
    John
    Figured I needed a new thread since this is more than just turning the battery on/off.

    Was on an on ramp, 5th gear, ac on, under 3K rpms, step on the gas and I think I felt a little misfire or something. Road was bumpy and I am pretty sure the car felt "off" for about 2 seconds. Looked down and notice the check engine light is on.

    Stop to eat and car cools down a bit but it is still warm, start it up and my buddy comments on a bit of blue smoke puffed out of the back.

    Drive home, slow as usual but feel no issues with the car at all. Get home, let it sit for a while and post about the master switch. Go out and start the car and smoke (i think blue/greyish) come out. Put the car in the garage and notice the exhaust tips are dirty. Never saw them like this before, looks like dirty from the smoke and not dust from driving.

    Any thoughts? Going to reset the car tonight and start it tomorrow am.

    00 360, bought from F dealer in March (8600 miles) and currently has 9200 miles. Major service just completed 6 weeks or so ago before the car was shipped to me.

    Thanks!!

    John
     
  2. RayJohns

    RayJohns F1 Veteran
    Silver Subscribed

    May 21, 2006
    7,930
    West Coast
    Full Name:
    Ray
    Usually blue/white smoke is burned oil. Did the shop doing the compression test use oil to seal the rings during the compression test? If so, that oil will find its way to the exhaust canister and sit there. It will take a very long (hot) drive to burn it all out.

    If they did not put any oil into the cylinders during the compression test, then the car may be burning oil internally some place.

    Have you checked the oil level recently? Also, try to smell the smoke to see if it smells of burnt oil. I would also make sure the O2 sensor lines are properly attached and/or not broken.

    Finally, have a dealer pull the check engine code and see what's going on.

    Ray
     
  3. Ingpr

    Ingpr F1 Rookie

    Jun 30, 2009
    2,619
    PR
    Full Name:
    David
    I'm no sure with Ferrari but blue smoke can be two things;
    the car have more gas in the mixture that it should
    or
    the car is burning oil
     
  4. mousecatcher

    mousecatcher Formula 3

    Dec 18, 2007
    2,116
    san mateo, ca
    if the CEL is on, i would suspect a bad O2 sensor. easy to check with a $40 code reader from autozone or wherever.
     
  5. andrew911

    andrew911 F1 Rookie
    Silver Subscribed

    Sep 8, 2003
    2,894
    Northern NJ
    Just remember Seanile- if you undo the battery you will erase the check engine code. Either do not do this, or buy a code reader at an autoparts store (they aren't expensive), write down the code and mileage, and re-set after talking to your mechanic if he wants you to reset the code (to see if it comes on again). If you just erase the code by disconnecting the battery you don't know what caused it...if you disconnect the battery make sure your using the proper procedures to let the car recalibrate the computer (check other posts- I think you have to wait with key turned before starting, then when the car is ready start it and let it for 10 minutes or something like that).

    I get some smoke on the first start after sitting a while- the car sputters for about 10 seconds like it's running on 4 cylinders and then goes to full 1,100 rpm idle. It's common on 360's when they have been sitting for a few days, and my mechanic recommendes to just let the car do it's thing, not to push the gas or anything until the car gets up to full idle. My point is some of this may just be a "normal" quirk with 360's that happens to many of them.
     
  6. Ingpr

    Ingpr F1 Rookie

    Jun 30, 2009
    2,619
    PR
    Full Name:
    David
     
  7. andrew911

    andrew911 F1 Rookie
    Silver Subscribed

    Sep 8, 2003
    2,894
    Northern NJ
    By the way, my car is at the mechanic now for a check engine light. So far he's checked intake leaks (none), and fuel pressure (Good). He's got a bunch of other things to check- and we know what codes were recorded! Without the codes it would be even harder to diagnose...there are so many things from a wire that is loose to a bad sensor to...well, bad catalytic converters and anything in between...
     
  8. SeaNile

    SeaNile Formula Junior

    Jan 25, 2010
    679
    West Chester, PA
    Full Name:
    John
    Guess this is my motivation to find a good local mechanic.

    John
     
  9. JoshECS

    JoshECS Formula Junior
    BANNED

    May 3, 2010
    433
    Ashburn,VA
    Full Name:
    Josh Hill
    Did you notice any other unusual running conditions after all this? Is the car sluggish or flat sounding?
     
  10. SeaNile

    SeaNile Formula Junior

    Jan 25, 2010
    679
    West Chester, PA
    Full Name:
    John
    I did not push it hard but just before my home development had it to 6000rpm in 2nd and it sounded fine and pulled hard. Everything seems to be fine. But then I started it in my driveway and saw the blue/grey smoke.
     
  11. blkdiablo33

    blkdiablo33 F1 Rookie

    Jul 12, 2004
    4,468
    it might be using oil,ck your oillevel when eng is hot and running,or possibly some oil in itake from ovefilling at one time.i know 95% of 360 owners say there car uses no oil within 3000 miles bt mine uses about 1 qt within 3000 miles,i do drive mine the way it was designed to.let us know what the code or codes are.
     
  12. JoshECS

    JoshECS Formula Junior
    BANNED

    May 3, 2010
    433
    Ashburn,VA
    Full Name:
    Josh Hill
    Often "smoke" on start-up can indicate weak piston rings. It could be as simple as something in the PCV system failed and is allowing some oil ingestion also. I realize these are two entirely different situations, either way it's something you'll want to look to a qualified shop to figure out as they could be serious.
     
  13. mousecatcher

    mousecatcher Formula 3

    Dec 18, 2007
    2,116
    san mateo, ca
    #13 mousecatcher, May 27, 2010
    Last edited: May 27, 2010
    When the O2 sensor is bad the ECU injects too much fuel. This causes smoke and dirty exhaust tips. As well as poor idling and high fuel consumption. If the car is merely burning oil, the CEL would not be on.
     
  14. mousecatcher

    mousecatcher Formula 3

    Dec 18, 2007
    2,116
    san mateo, ca
    of course many other things could be wrong, but the symptoms match a bad O2 sensor, which also happens to be a common type of failure (more so than, say, broken piston oil ring) and easy to check. definitely the first thing i'd look for.
     
  15. Ingpr

    Ingpr F1 Rookie

    Jun 30, 2009
    2,619
    PR
    Full Name:
    David
    Totally agree.
     
  16. lndshrk

    lndshrk Formula Junior

    Nov 7, 2003
    753
    SLC, Utah
    Full Name:
    Jim Conforti
    John,

    You need to READ THE CODE(s) before you try to guess "what's going wrong".

    Diagnosis is a procedure - and with that code we can tell you what your Motronic THINKS
    the problem is.

    Jim
     
  17. SeaNile

    SeaNile Formula Junior

    Jan 25, 2010
    679
    West Chester, PA
    Full Name:
    John
    I reset the master switch and the "check engine" light cleared. Let it sit for an hour then switched to "on" and let it idle for 30 min. Took a few seconds to start but no smoke and it seems fine. Tomorrow will be the first drive and I will see what happens. If the code comes up again I am heading right to a mechanic!
     
  18. Ingpr

    Ingpr F1 Rookie

    Jun 30, 2009
    2,619
    PR
    Full Name:
    David
    Good news!
     

Share This Page