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starting problem Testarossa

Discussion in 'Technical Q&A' started by louiefox, Nov 13, 2014.

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  1. louiefox

    louiefox Rookie

    Nov 12, 2014
    3
    California
    Full Name:
    Tony Malucchi
    #1 louiefox, Nov 13, 2014
    I have a 1986 Testarossa that will not start. Engine dash lights, windows and A/C also do not work with key in on or run position. Motor turns over however there seems to be no spark. This problem just happened with no other issues car has been running great.
    Any suggestions I have tried relay and all fuses look good.

    Thanks
     
  2. Chief20123

    Chief20123 Karting

    Dec 22, 2012
    169
    Melbourne,Australia
    Full Name:
    Fred
    #2 Chief20123, Nov 13, 2014
    It's probably the white connectors on the fuse panel which are burned. This is a known problem. There are plenty of threads on this.. Do a search and you will find out more. If this is the problem, Fuse box upgrade by Dave Helms is the way to go....
     
  3. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,931
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #3 Steve Magnusson, Nov 13, 2014
    Until you get the first part of your description working, there will be no +12V power going to the ignition system (so naturally no spark). First try unplugging/inspecting/reseating the w connector on the fuse-relay panel (it's the single vertical one on the LH Driver's side). The two large A (light blue) wires in the two bottom positions should be +12V when the key is "on" -- if they aren't = bad sign for the ignition switch (since the starter function works, that confirms +12V is reaching the ignition switch); or if they are horribly burned = you've found the trouble ;)
     
  4. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,288
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #4 Rifledriver, Nov 13, 2014
    If it turns out to be a switch rebuilding the original is an option. New, if still available are very spendy.
     
  5. 88Testarossa

    88Testarossa Formula 3

    Sep 25, 2012
    2,450
    Annapolis and Daytona Beach
    Full Name:
    Al
    #5 88Testarossa, Nov 14, 2014
    +1 on the Dave Helms fusebox rework
    Reasonable money well spent, quick turnaround too
    And a very nice guy as well who is committed to preserving our TRs
     
  6. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,931
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #6 Steve Magnusson, Nov 14, 2014
    Last edited: Nov 14, 2014
    Unfortunately, that SRI rework addresses other items (involved in getting power from the fuse-relay panel relays out to the high-current items) which are not related to this issue/problem (which involves getting power into the fuse-relay panel from the ignition switch) -- this problem is in a different area of the system.
     
  7. louiefox

    louiefox Rookie

    Nov 12, 2014
    3
    California
    Full Name:
    Tony Malucchi
    #7 louiefox, Nov 14, 2014
    Thanks for the help I believe ignition switch is bad. Have 12 v going to switch and no bad fuse connectors. Dealer's want around $3000.00 part # 164283 any other viable options for part.
     
  8. MisterT

    MisterT Karting

    Feb 2, 2011
    87
    Fleet, Hampshire, UK
    Full Name:
    Simon Taylor
    #8 MisterT, Jun 3, 2018
    what was the final outcome?
     

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