Lost communicaiton problem.

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Lost communicaiton problem.

Postby Suprazz » Sat Jul 07, 2012 8:19 am

I always loose the communication between TS 2.0.5 and my ms3 with rc1. I was on beta 18 and beta 20 before and I was having the same problem. I also tried with TS 2.0.0. Nothing changed.

I tried with the usb port of the ms3 and also with the serial to usb cable that diyautotune sells. Same problem.

At idle it seems ok but when I hit the gaz pedal, I almost always loose the communication. But sometimes I can make a pull before loosing comm but it's rare.

I tought it was noise so I added 220uf to the 12v input f the MS but nothing changed. I already have a capacitor on the ignition (near the 6 pen coils). I also added 104 caps on the 5v of the 40 pins socket.

I'm using 6x 2uz pen coils and 6 low impedance injectors with resistor box.

In datalogs, battery voltage is stable (I also have a capacitor on the bootloader jumper).

All my grounds are good, directly on the intake and the sensors ground is only connected to the MS.
Toyota Supra 89-92 7M-GTE and 1JZ-GTE Plug and play ECU: http://www.perfecttuning.net
Suprazz
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Re: Lost communicaiton problem.

Postby Suprazz » Sat Jul 07, 2012 8:43 am

I also tried to to drop the comm speed to 57k but it changed nothing.
Toyota Supra 89-92 7M-GTE and 1JZ-GTE Plug and play ECU: http://www.perfecttuning.net
Suprazz
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Posts: 191
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Re: Lost communicaiton problem.

Postby Kennyx » Sat Jul 07, 2012 10:39 am

Have you try with another laptop before ?


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Re: Lost communicaiton problem.

Postby Suprazz » Sat Jul 07, 2012 12:44 pm

no but i'm using this netbook for all the cars i work on and I never had problems. I'm also using it for my car and no problems...
Toyota Supra 89-92 7M-GTE and 1JZ-GTE Plug and play ECU: http://www.perfecttuning.net
Suprazz
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Posts: 191
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Re: Lost communicaiton problem.

Postby Kennyx » Sat Jul 07, 2012 12:57 pm

Is there any strange behaviour when ms3 lost connection ? miss fire or something.


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Re: Lost communicaiton problem.

Postby Suprazz » Sat Jul 07, 2012 1:15 pm

no, i noticed that the afr at idle is not always the same and I have correction disabled. But the car runs fine and its hard to reconnect. Normally i stop the car and try to reconnect and it work.
Toyota Supra 89-92 7M-GTE and 1JZ-GTE Plug and play ECU: http://www.perfecttuning.net
Suprazz
Experienced MS/Extra'er
 
Posts: 191
Joined: Mon Jan 22, 2007 7:58 pm

Re: Lost communicaiton problem.

Postby Suprazz » Sat Jul 07, 2012 6:15 pm

and I also used this ms3 on my car and I had no problems while driving more than 1000km in one weekend with a lot of datalogs. But on his car, i loosing communication with TS. Maybe I can add 1 capacitor to each coil and see if it help for the noise...

Is there any heavy duty capacitors recommended to use with 2uz pen coils?
Toyota Supra 89-92 7M-GTE and 1JZ-GTE Plug and play ECU: http://www.perfecttuning.net
Suprazz
Experienced MS/Extra'er
 
Posts: 191
Joined: Mon Jan 22, 2007 7:58 pm

Re: Lost communicaiton problem.

Postby Suprazz » Mon Jul 09, 2012 8:03 am

is there anything else than noise that can cause this?
Toyota Supra 89-92 7M-GTE and 1JZ-GTE Plug and play ECU: http://www.perfecttuning.net
Suprazz
Experienced MS/Extra'er
 
Posts: 191
Joined: Mon Jan 22, 2007 7:58 pm

Re: Lost communicaiton problem.

Postby Suprazz » Fri Jul 13, 2012 4:30 am

do you think installing this capacitor to each coil will help: http://www.digikey.ca/product-detail/en ... ND/2815201 ?
0.63uF/100v 125celcius

Or i'm loosing my time?

Thanks
Toyota Supra 89-92 7M-GTE and 1JZ-GTE Plug and play ECU: http://www.perfecttuning.net
Suprazz
Experienced MS/Extra'er
 
Posts: 191
Joined: Mon Jan 22, 2007 7:58 pm


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