355 F1 TCU replacement | FerrariChat
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355 F1 TCU replacement

Discussion in 'Technical Q&A' started by rendergod, Oct 13, 2011.

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  1. rendergod

    rendergod Karting

    Jan 30, 2004
    69
    Silicon Valley
    Full Name:
    Allen
    #1 rendergod, Oct 13, 2011
    I have a spare used TCU that I'd like to swap in to see if it fixes an intermittent paddle shifting issue. The workshop manual says to start by using an SD-1 to read a clutch position value out of the old TCU, do the swap, then enter that value into the new TCU. How important is this? The manual also calls for "PIS" and "IO" self-calibrations, but those procedures are done with the ignition key and pedals and do not seem to need the SD-1. I'm hoping the SD-1 step is optional so that I can do the swap myself and avoid a trip to the dealership. Has anyone tried this?
     
  2. rustybits

    rustybits F1 Rookie
    Professional Ferrari Technician

    Jan 28, 2007
    2,509
    Somewhere, anywhere
    Full Name:
    Eddie B
    #2 rustybits, Oct 14, 2011
    The clutch value is important as it dictates how the ecu inerprets the measurement from the pis sensor. Any specialist with an Sd1 or an sd2 with porting software can do this for you and it shouldn't cost the earth...
     

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