2000 360 Check Engine Light, Code P1160 | FerrariChat
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2000 360 Check Engine Light, Code P1160

Discussion in '360/430' started by andrew911, Apr 24, 2010.

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  1. andrew911

    andrew911 F1 Rookie
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    #1 andrew911, Apr 24, 2010
    I scanned my car since the CEL came on- does anyone know what code P1160 is for? I'll take it to my mechanic, but was just curious, and curious if OK to keep driving the car for now. A couple of weeks ago the CEL came on and after a using the car during day it went out on its own. Now it came back on!

    Thanks
    -Andrew
     
  2. Ingpr

    Ingpr F1 Rookie

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    #2 Ingpr, Apr 24, 2010
    P1160 - Long term fuel trim multiplicatve lower
    Solution;
    System too lean (max)
    1-Check the fuel pressure
    2-Icheck HC CO emission with no lambda Integrator
    3- Check injectors and wiring.

    What is your current milage?
     
  3. andrew911

    andrew911 F1 Rookie
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    #3 andrew911, Apr 24, 2010
    Last edited: Apr 24, 2010
    Thanks for the feedback! My current mileage is 15,400. Do you think it's OK to drive the car for another 100-200 miles before getting it to my mechanic? Car is running great as far as I can tell....

    -Andrew
     
  4. Ingpr

    Ingpr F1 Rookie

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    #4 Ingpr, Apr 24, 2010
    The fuel injection system should be checked every 15k miles so your car is up to be check. My adivise is not tu run the car specially if it is running to lean, that can end up on sirious damage to the pistons and other internal parts. I prefeer to pay $150 for a Flatbed and don't spend thousands on that engine. My two cents, maybe some other members can comment on this matter.
     
  5. andrew911

    andrew911 F1 Rookie
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    #5 andrew911, Apr 24, 2010
    I was just able to speak to my mechanic- his recommendation as a first step was to re-set the check engine code, drive and see if it comes on again. If it does, check the code to see if its the same (P1160) and then we can take it from there. I re-set the code, but won't have a chance to drive the car until later today as I'm home with my kids while the wife is out...
     
  6. andrew911

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    #6 andrew911, Apr 24, 2010
    Well, I just got back from an AWESOME drive- about 30 minutes of driving and no CEL light after the re-set. I'll hope it stays off, but even if it comes on again I saved myself one trip to the mechanic by buying the scanner- he would have re-set and told me to drive it and come back to him if it came on again- now if it comes one I'll only have to drive out to him once to get it fixed (he's not too close to me so the time savings from the trip was worth the $ for the scanner).
     
  7. rustybits

    rustybits F1 Rookie
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    #7 rustybits, Apr 24, 2010
    if it's a fuel trim issue then you may not see the CEL for several drives, until it learns that it's reached the end of it's parameters again, and the light pops on. I would be checking for air leaks on the vac. hoses at the rear of the intake, and also check the intake gaskets for leak, as these can cause this issue.
     
  8. andrew911

    andrew911 F1 Rookie
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    #8 andrew911, Apr 25, 2010
    Thanks- all useful information!

    -Andrew
     
  9. andrew911

    andrew911 F1 Rookie
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    #9 andrew911, May 9, 2010
    Last edited: May 9, 2010
    Well, about 120 miles later and the light came on again- same read on my OBD tool- 1160. I'll give my mechanic a call on Monday and mention some of the helpful items mentioned in this thread above. I didn't re-set it this time since the main reading is the same- I want the light to stay on because I think there's a ferrari code reader that he has which will be more specific than just "code 1160".

    Thanks again all, and I'll respond with the results of the repair in case anyone does a archive search for the code to have an idea if they have the same potential issue (I didn't find much info when I searched here). Of course there are multiple things that can cause this code in the population of 360s, but some causes are probably more frequent than thers...

    -Andrew
     
  10. BLAMPEE

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    #10 BLAMPEE, May 9, 2010
    Andrew, I have had the P1130 code in my 355 for the two years I've owned the car. In the 355 it is the same thing as the P1160 you're getting in the 360.

    My mechanic could not find a problem with the car so I finally drove it 3 hours to Seattle to have Pope Carlo @ Alfa Tacoma pull it apart and find out why in the hell my LTFT is running at 15.6%.

    He's had the car two weeks and I am awaiting the results. In the 2 years I have spent over $20k replacing bad cats, headers, 30k service, clutch, etc. This P1130 code will not go away.

    I will post here to let you know the results.
     
  11. rustybits

    rustybits F1 Rookie
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    #11 rustybits, May 11, 2010
    If your tech looks at the long term fuel trim it will be high. I'd definately check for an air leak on the base of the inlet manifold, i've had this code countless times on cars with this issue. With the engine cold and at idle spray a bit of brake cleaner around the bottom half of the inlet manifold, while watching the adaptive values. You will either see a jump in the values or hear the tone of the engine change if a leak is present.
     
  12. andrew911

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    #12 andrew911, May 11, 2010
    Last edited: May 11, 2010
    I have a question - What is a "fuel trim"? Is that a part or is that a descriptive term that the car is running lean? Eddie- what was the fix on the cars you repaired, a new intake manifold gasket? A re-torque of the manifold bolts?
     
  13. rustybits

    rustybits F1 Rookie
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    #13 rustybits, May 13, 2010
    Hi Andrew. All this terminology only relates to figures that the e.c.u read from sensors on the engine, not parts that are fitted to it. The diagnostic computer looks at these figures to see what the e.c.u is seeing, which gives an indication of what is and what isn't going on with the running of your engine. The e.c.u makes alterations to the fueling of the car based on several figures it gets from various sensors, including the oxygen ensors that are on the manifolds and cats.It's usually the inlet manifold gaskets that require replacement when this error occurs, but obviously this is pure internet speculation; a proper diagnosis would be required, and as i said before, one of my first ports of call would be to check for leaks on the inlet manifold in the manner i described. Good luck with it, keep us updated!
     
  14. andrew911

    andrew911 F1 Rookie
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    #14 andrew911, May 13, 2010
    Last edited: May 13, 2010
    Thanks for the feedback Eddie! My intent is of course not to try to definitely figure out the issue on the internet, but just to get some ideas which you have given- great info! My mechanic wants to be sure we keep getting the same code, and had me re-set the code for one final time. When it trips again (and I assume it will), then I'll take it in to him (it took 120 miles before tripping again last time, so probably a couple of weeks of weekend driving).

    I hope an inlet manifold gasket isn't a big job if that's what it is ;)

    -Andrew
     
  15. andrew911

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    #15 andrew911, Jun 15, 2010
    Last edited: Jun 15, 2010
    Forgot to update this post...the CEL went on about 20 miles after my last post above. I took the car in to my mechanic and he checked over everything, found a loose fuel injection wire and cleaned up one of the spark plug leads, but mainly I think the issue was one of the mass airflow sensors. He swapped the side showing the error code with a new one, and said drive it to see if the light came on. A couple hundred miles later and all is still well. When leaving his shop- once driving the typical low rev easy driving I drive until the oil is warm, I revved past 3,500 RPM and right away noticed a smoother part-throttle response around 4,000-4,500 rpm, where before there was an ever so slight hesitation since I bought the car last October, so I'm happy- I got the CEL off and actually have a motor that's running even better than before (and it was running pretty damn well before ;) )

    -Andrew
     

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