355 - Help needed pls on wiring during engine installatio | FerrariChat

355 Help needed pls on wiring during engine installatio

Discussion in '348/355' started by cactussed, Mar 26, 2020.

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  1. cactussed

    cactussed Karting

    Mar 12, 2008
    232
    #1 cactussed, Mar 26, 2020
    Chaps

    Just bolted the engine back in and I have a wiring connections I can't remember. Its a 5.2 car.
    There is a black 3 pin female plug just to the right the oil filter and I can't for the life of me recall where it goes?

    Can someone help out pls?
     
  2. Tubi Sales

    Tubi Sales Karting

    Jul 5, 2019
    172
    PHX
    #2 Tubi Sales, Mar 26, 2020
    Hey,

    Anyway you can give us a photo of what your working with? Might give some of us a clearer picture.
     
  3. cactussed

    cactussed Karting

    Mar 12, 2008
    232
    #3 cactussed, Mar 26, 2020
    Not sure I can tonight, but down that side of the V there's the fuel injector plugs, the 2 coolant plugs and the cam phase sensor, all of which are done,
    I just can't for the life of me see / recall where this plug goes.
    For clarity, its not the 3 which cover IAT, Idle control or MAF.
     
  4. yelcab

    yelcab F1 World Champ
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    #4 yelcab, Mar 26, 2020
    You should have taken a picture before you took it off. To the right of the oil filters there are 4 or 5 connectors. Show me a picture of it and I'll tell you where it goes.
     
    Tubi Sales likes this.
  5. cactussed

    cactussed Karting

    Mar 12, 2008
    232
    #5 cactussed, Mar 26, 2020
  6. cactussed

    cactussed Karting

    Mar 12, 2008
    232
    #6 cactussed, Mar 26, 2020
  7. yelcab

    yelcab F1 World Champ
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    #7 yelcab, Mar 26, 2020
    Last edited: Mar 26, 2020
    Best Guess: see that T hose 4 inches to its left? Into the hose is the Idle Control Valve. The connector goes to the ICV.

    Better yet, peel back the boot, tell me the colors of the wires and I will confirm what connector that is.
     
  8. cactussed

    cactussed Karting

    Mar 12, 2008
    232
    #8 cactussed, Mar 26, 2020
    It’s not the ICV as that has a seperate one on the same loom spur as the MAF and air temp sensor
     
  9. johnk...

    johnk... F1 World Champ
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    Jun 11, 2004
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    #9 johnk..., Mar 26, 2020
    By any chance did you disconnect the crank sensor and lay the wire back into the valley?
     
  10. Qavion

    Qavion F1 World Champ
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    #10 Qavion, Mar 26, 2020
    Here's a list of 3 pin plugs on the harness:

    Crank sensor (front of engine)
    Knock sensors (L&R)
    Throttle potentiometer
    Idle speed regulator
    Cam sensor
     
    308 GTB likes this.
  11. yelcab

    yelcab F1 World Champ
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    #11 yelcab, Mar 26, 2020
    Peel back the boot, tell me the color of the wires and I will know which one that is.

    Cam sensor has a blue connector
    Throttle position sensor has a grey connector
    Knock sensor has a black connector

    Crank sensor is black but it is no where near that position.
     
    cactussed, 308 GTB and Qavion like this.
  12. sevminasyan

    sevminasyan Formula 3

    Jun 24, 2008
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    #12 sevminasyan, Mar 26, 2020
    It goes under the air cleaner
     
  13. sevminasyan

    sevminasyan Formula 3

    Jun 24, 2008
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    #13 sevminasyan, Mar 26, 2020
    The y tube
     
  14. taz355

    taz355 F1 Veteran
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    Feb 18, 2008
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    #14 taz355, Mar 26, 2020
    Judging from my engine I would guess the crank sensor
    Find the crank sensor on the bank 1 side and follow it back the plug is probably hiding in their somewhere
     
  15. cactussed

    cactussed Karting

    Mar 12, 2008
    232
    #15 cactussed, Mar 27, 2020
    Invaluable, thank you.
    Your post spotted what my tired eyes missed.

    I’d put the throttle position plug onto the crank angle and forgotten about the TPS. All swapped now and hopefully sorted.

    Sodding chassis bolts next
     
  16. yelcab

    yelcab F1 World Champ
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    #16 yelcab, Mar 27, 2020
    That would not end well.
     
  17. yelcab

    yelcab F1 World Champ
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    #17 yelcab, Mar 27, 2020
    You do that first before anything else …
     
  18. cactussed

    cactussed Karting

    Mar 12, 2008
    232
    #18 cactussed, Mar 27, 2020
    They're mostly in, aside from the 2 really awkward ones near the oil tank.
    Meanwhile, my next issue is a snapped coolant union barb (part 157160) which is awkward to reach without dropping the engine. Again.
     
  19. taz355

    taz355 F1 Veteran
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    #19 taz355, Mar 27, 2020
    Let me guesst the barb with the small 3/8 line going back to tank
     
  20. Qavion

    Qavion F1 World Champ
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    #20 Qavion, Mar 27, 2020
    Interesting. Seems that my 2 year old harness has a few other quirks.

    My colours:

    TPS and knock sensor is black
    IAC is grey
    Cam sensor blue

    I have no CELs and the car runs fine.
     
  21. cactussed

    cactussed Karting

    Mar 12, 2008
    232
    #21 cactussed, Mar 29, 2020
    That's the one.
    I've tapped it to M5 and ordered a replacement barb.
    Fingers crossed.
     
  22. taz355

    taz355 F1 Veteran
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    #22 taz355, Mar 29, 2020
    Broke it on my first engine out
    Tapped and replaced with a brass one for plumbing.
    It’s been through 2 more engine outs and is easily to get at.
    My guess is you will be fine.
    Good luck
     
  23. 355OXO

    355OXO Karting

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    #23 355OXO, Mar 30, 2020
    It connects to the sensor attached to the rubber Y piece i think, can't remember what is called but it is the air sensor i believe.
     
  24. yelcab

    yelcab F1 World Champ
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    #24 yelcab, Mar 30, 2020
    he already said no to the ICV.
     
  25. 355OXO

    355OXO Karting

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    #25 355OXO, Apr 1, 2020
    apologies I did not see this comment earlier in the thread.
     
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