430 Can someone confirm I'm not crazy: "soft" clutch reset

I can neither confirm your supposition about the clutch as I have a manual, nor if you are crazy (as one is not necessarily dependent on the other )

But I would find it surprising that this is not common knowledge among the community if true

 

Check the data stream before and after

These parameters

Clutch wear index
Pis
Clutch pressure plate
Clutch solenoid leakage rate ..on and off

I know that there is recalibration of solenoid when you idle for 5 mins and then hold brake in 1st for 5 mins ..and I can tell you this makes a huge difference.. sometimes not for the better

This applies to 2005 thru 2007

Sent from my moto g power using Tapatalk

 

You have a f430 correct


Get a thinkdiag2 ..it will provide you with what you need

On sale 129 for one year subscription

Get it Friday ..in a year you can resubscribe (sometimes good deals) or just buy another

Thinkdiag2 All System Bidirectional Control OBD2 Diagnostic Scanner for iOS & Android, Bluetooth Scan Tool with CAN-FD Protocol, AutoVIN, Active Test, 15+ Reset Functions, ECU Coding, 1 Year Free https://a.co/d/fI5HcNv

Sent from my moto g power using Tapatalk

 

ok - just a fyi the clutch wear index will not appear on any diag tool including SD on a 2008 ... the reason is they changed the programming to use 5 wear / grab algorithms to determine how much torque to reduce/ apply to clutch as you engage it .. the feature in the diag tool will reset all 5 parameters but no place to see actual numbers
I am wondering if that is what you are doing by pulling paddles back .. it would make sense based on your "feel" .. it can also be recalculating leakage rate

The tool is as good as the best launch for 2008 .. so if you are going to buy one and don't mind using your phone .. this is your best choice
The head ( dongle ) is a very well put together ( in terms of electronics) --- i think even better than the one in a pro mini s

 

Interested to know

Bmw smg boxes re learn rolling dia of wheels when driving and doing this

 

I swear my truck drives better after I wash it...

How many miles on your 430?

Ray

 

I've seen this thread previously. Perhaps related or was this just Italian wives tales? US version of launch control without LC button?

https://www.ferrarichat.com/forum/threads/secret-launch-code-f430.203323/


2005 F430 F1

I tried this today and it worked GREAT. I felt NO clutch slip. In fact, pulling away from a light in sports mode results in MUCH more clutch slip before full engagement.

With the following scenario, the car shot off like a rocket ship! I was doing over 100 almost before I could take a breath.

Foot on brake pedal
Switch CST off
Pull both paddles to put car in neutral
Pull LEFT paddle and hold until beep sounds, 1 appears in the display, and transmission failure light come on
Let go of the paddle, foot off brake, grab the wheel, hold on tight, and push your right foot to the floor - don't be shy about it......HOLY CRAP!!!!!!!!

Not sure I'll ever do it again, since I don't feel the need to do hole shots, but it was quite the ride!

 

I bought a thinkdiag a couple of years ago, was able to see most stuff including clutch wear but couldnt see the airbag ecu, ended up borrowing my mates icarsoft, which could. Has the thinkdiag been upgraded?

 

I believe the whole launch line still doesn't recognize the airbag ..

I still don't anything that can reset the airbag error codes except the Leo or SD ..did the icarsoft reset the airbag ?

Sent from my moto g power using Tapatalk

 

It flagged up 2 errors, which pointed me to the problem (clock spring) and then I was able to clear the errors from the memory. I do wonder though if the airbag light would have reset anyway when I'd fixed the fault as at first the light was intermittent.

 

My thinkdiag still does not see any airbag stuff, latest firmware, but can read all clutch info and set pis.

I will try this procedure and read the parameters as per @flash32 said when the weather warms up, it's too cold now to take it out on summer tires unfortunately.... Unless they throw salt on the roads, and then it's parked until spring...

 

The thinkdiag is a pretty amazing for the price. For the 2008+ cars, including the Scuderia, it won't read the actual clutch wear but will give you the data to calculate it. The only system that can read the actual clutch wear on the newer cars directly is a Leonardo or a Ferrari SD. The weird part on the readers for the clutch parameters used to calculate clutch wear on the 2008+ is that your wear calculation will actually go up/down all the time based on the dynamic adjusting of the newer transmission. Only when you track it over time will you have an approximate idea where you are at. This is why I have a spreadsheet to track wear based on reading, mileage and date. I think the Leonardo and Ferrari SD give the accurate number every time as it uses a better and more complicated calculation.

 

I am not sure r I quite understand your statement of how the parameters keep changing

If you measure the clutch position engine cold and after engaging a neutral and first once or twice with engine off ..you should get consistent results

That being said I have seen clutch position change as much as .06 mm or more when measuring hot or warm etc

Please let me know ..

In my post I mentioned clutch wear index ..that will not be displayed in any diag tool for a 2008 and above

Sent from my moto g power using Tapatalk

 

Since I have a 2009 and you can't see the clutch wear as you mention without a Leonardo or SD. Clutch Wear reads 0 or negative on both my Thinkdiag and AP200.

So the way my "spreadsheet" works is that I use the formula ((Clutch Position Closed−Clutch Position Closed from New)÷5.6)×100 to calculate wear. Even cold to cold, it will come up a few % one way or another if I measure them too closely in mileage. If I do this about once every 1 to 2k miles, then I get a better idea on the wear when I compare it against what the Leonardo says at my mechanic. I assume the difference is the system adjusting dynamically, I should have asked him. If I am wrong about that, please explain to me why I might see the discrepancies in my data. You are the F1 expert here and I'm just trying to make sense out of the captured information.

PS for anyone else reading this... 5.6 is the F430 number to calculate wear, the 360 number for the formula is different.

 

Will that thinkdiag adjust the PIS on a 430?

I asked the seller on Amazon but got no response yet. Cheers!

 

If 2007 or earlier, yes. It does on my 2005.

 

Thanks! I'm an '09 Scud ... should probably still do it

 

Corey

I don't believe the closed clutch position is adjusted by the TCU .. it is a strict measure from the clutch position sensor. The measurement, in 100's of a mm ( we are talking small amount), is very affected by heat, position of how the clutch is resting on the flywheel ( high spots to low spots etc), voltage being supplied to TCU/ Sensor ..even torque twist right before shut down ( meaning if in reverse, or in forward gears, or rolled from neutral). I have seen this while fine tuning a f430 this past week. The measurement varied almost .1 mm which is almost 2% wear. I think you need to take a moving average to see how the clutch is truly wearing...by the sound of it .. that is what you are doing. The clutch wear index ( not clutch wear) is not going to show up on any diag equipment that I am aware of. This is because the algorithm is based on 5 curves vs one ( pre 2008, pre sofast3 ). The reset clutch wear still does work ..but instead of resetting one curve it resets 5 curves.

 

On a 2009 car I would consider leaving it be. If the clutch was setup properly the TCU 3.01 clutch setup software (DEIS) did a good job, using a number of parameters to determine a good PIS. Just check engagement point of 1020 - 1080 or so. Also check clutch every 2k and see how it is performing.

 

Oh - ok, thanks. It's just been back to Ferrari because it slipped out of gear a couple of times under load - they moved the PIS from 3.25 to somewhere in the low 4s. They said clutch looked fine and read at only 25% worn. I was going to get an OBD so that I could just keep on top of it. Thanks for the tip.