TR512 - Check Engine Lights | FerrariChat
Buy

TR512 - Check Engine Lights

Discussion in 'Technical Q&A' started by Miami Tim, Aug 17, 2005.

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

  1. Miami Tim

    Miami Tim Rookie

    Mar 19, 2005
    4
    #1 Miami Tim, Aug 17, 2005
    I am having trouble fixing an ongoing problem with my 92 TR512. The check engine lights come on (both banks) periodically. Usually, before one of the lights comes on, the car will not accelerate and then the car jumps, with the light then coming on. Later the lights go off. I replaced the O2 sensors. The very reputable Ferrari dealership shop I am using first explained it as a gliche. I am thinking it is a problem in the Motronic fuel injection system. I have read in the literature that this system is very good, when it works. Has anyone experienced this problem? Any advice on the culprit and cure?

    Miami Tim
     
  2. WILLIAM H

    WILLIAM H Three Time F1 World Champ

    Nov 1, 2003
    35,532
    Victory Circle
    Full Name:
    HUBBSTER
    #2 WILLIAM H, Aug 17, 2005
    Last edited by a moderator: Sep 7, 2017
    Cool, another 512TR in Miami, I have two 512TRs & a 512M

    BTW Welcome to FChat

    how long have you had your TR ? lets see some photos

    There are several gremlins in the 512TR. The 02 sensor is 1, if you took the cats out I think the lights may be on constantly. the spark plug wires may be bad & they are VERY expensive IF you can find them,
    you might want to look at the printed circuit board in the trunk, also have the switch behind where you put the ignition key in looked at, mine was constantly killing my battery, also buy an extra starter motor solenoid

    Good Luck
    WH
    Image Unavailable, Please Login
    Image Unavailable, Please Login
     
  3. BT

    BT F1 World Champ
    Lifetime Rossa

    Mar 21, 2005
    15,291
    FL / GA
    Full Name:
    Bill Tracy
    #3 BT, Aug 17, 2005
    Call Tim Stanford in Fort Lauderdale if you don't get any good answers from your mechanic.
    BT
     
  4. Pong

    Pong Formula Junior

    Nov 5, 2003
    796
    Thailand
    Full Name:
    Pong
    #4 Pong, Aug 18, 2005
    Just try some simplest thing first. Like...cleaning the connectors. I cleaned my old TR's connectors (O2) and it runs just fine after that.
     
  5. Miami Tim

    Miami Tim Rookie

    Mar 19, 2005
    4
    #5 Miami Tim, Aug 30, 2005
    Thank all of you for all the helpful hints. I replaced the sx.air flow meter. As soon as I get it out of the shop (Shelton), I will then pursue your hints if my repair did not fix the problem.

    I have a 92 red\tan with about 23K miles. I live in Coral Gables and absolutely love this car in terms of the power and looks. I had a 92 Mondial Cabriolet t and what a difference.

    Miami Tim
     
  6. IslandBoy

    IslandBoy Formula Junior

    May 26, 2005
    363
    South Florida
    Full Name:
    Richard H
    #6 IslandBoy, Aug 30, 2005

    I have your twin ............. and live in the south Gables area as well. Drop me an email and I can hook you up with a good mechanic, without the dealer pricing. [email protected] (Will be in Maui 8/31 - 9/10) Enjoy the car!!!!
     
  7. bazzis

    bazzis Karting

    Nov 5, 2003
    217
    Sarratt, Herts
    #7 bazzis, Aug 30, 2005
    I had a similar problem with my 512TR, I cured it by carefully cleaning the Multipin connectors on the ECU's which are located behind the seats under a small carpeted panel, just below the rear widow. Dont use WD40, get proper electrical cleaner/lubricant, cured mine , hopefully yours.................
     
  8. Lloyd

    Lloyd F1 Rookie

    Aug 25, 2001
    2,714
    Austin
    #8 Lloyd, Aug 30, 2005
    I second this cure. Do the same for connections in the engine bay. I now cover the engine with plastic when I wash the car just to keep excess water out of the engine bay electrical items. (note if you do this tie a rag to your steering wheel before you cover the engine so you remember to take off plastic before starting engine)
     
  9. LP400S

    LP400S Formula 3

    May 18, 2002
    1,223
    West Coast
    #9 LP400S, Aug 30, 2005
    Funny this subject just came out.

    My Check Engine cyl 1-6 just came on. The car has a major loss of power when this happens and you can smell the exhaust. I put a timing light on the 1-6 wires and it is firing.The car had this symptom before and it went away and ran fine. Any ideas??

    Thanks
     
  10. WILLIAM H

    WILLIAM H Three Time F1 World Champ

    Nov 1, 2003
    35,532
    Victory Circle
    Full Name:
    HUBBSTER
    #10 WILLIAM H, Aug 31, 2005
    Steve, I would guess it could be the printed circuit board or the spark plug wires may be worn out
     
  11. LP400S

    LP400S Formula 3

    May 18, 2002
    1,223
    West Coast
    #11 LP400S, Aug 31, 2005
    William,
    What printed circuit board are you refering to?Also what should the ohm readings be for those wires?
     
  12. LP400S

    LP400S Formula 3

    May 18, 2002
    1,223
    West Coast
    #12 LP400S, Aug 31, 2005
    Can disconnecting the battery and re starting the car help on these?
     

Share This Page