F1 glitch when leaving light, never seen it before

I was at a light for a few min, the light changed and I went to accelerate. Indicator showed 1 and the car just reved when I gave it gas. I tapped the up shift and it did a stutter with some clutch engagement followed by a sequence on the display (which happened to fast to recall perfectly) that showed an E followed by a countdown from 5 to 1. At that time with traffic behind me I can't recall if it worked on its own or because I quickly hit neutral then into first. It sort of stuttered a few weeks ago but has generally behaved over 2.5 years of ownership.

If it happens again I will try to more accurately recall what happens, anyone seen this before? It seemed as if the throttle and clutch were being run by a confused TCU.

 

I don't recall if I heard it actually shifting for certain but I think it was just the display. The down shift sound as you approach a light is accented by the mechanical feel of the car and that was missing sitting still but if it happens again I will listen for that.

I was dead flat with my foot on the brake the entire time. And as a second point it didn't beep and go to neutral like if you sit with no pedal input, it kept 1 on the display until I went to accelerate.

 

Thread? Core issue? Resolution?

 

Did you replace the TCU?
Was it diagnosed on an SD2/3?
Was the gold connector kit done on yours?

 

Got some more observations. Something is defiantly up. I took it for about 200 miles of driving this weekend and saw two notable events. After decelerating to a stop (with the car doing its normal downshifting) in one case it just shifted to neutral on its own right as the wheels stopped and my foot was firmly on the brake, and the other event it showed a flashing 1 after coming to a stop.

 

I have yet to put it up on the lift, but I know I have read somewhere on the forum about sagging motor mounts causing F1 shifting problems and I will be inspecting that area closely. I did a good amount of searching but could not find any threads on the matter, although I know I read such a thing several times. Anyone recall a thread like that?

 

Finally found the thread: http://www.ferrarichat.com/forum/348-355-sponsored-bradan/446248-f1-owners-aware.html

Well this weekend it goes up on the lift to inspect all that and to go through the electrical.

 

The symptoms have gotten much worse and I dont want to risk driving it anymore until I resolve this for fear of being stranded. It has become increasingly difficult to engage reverse and it has missed a few shifts while accelerating, the shifts also feel delayed, like they are taking a long time. I checked out the electrical harness for damage and there was none, the connector was refreshed about a year and a half ago when I did the GCK and everything looks good there. I am starting to think my F1 pump might be dying which would be fine if that was the case as it has a good fix. Putting it up on the lift now to check the motor mounts and I will check the F1 pump prime time after letting it sit overnight.

 

I do not but my pump prime time has increased from about 13 seconds to about 15 seconds over the time I have owned the car.

BUT, I am pretty much certain that I have found my problem. I got it up on the lift today and dug into it and found what I am pretty sure is two busted motor mounts letting the F1 contact the crossmember causing these problems. The only thing I don't have handy is another 355 to compare mine to, if those of you out there could give me a sanity check and look at yours or snap a pic.
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Yep, blown out. Two new ones on order, lets hope it is the cause.
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Yep, about a half inch distance difference there, thanks!