help cant get comp to connect ( time out on clynder count )

indyian · Post by **indyian** » Fri Nov 21, 2008 7:43 pm

hi all i have been trying to get my ecu up and running but seem to be having a prob with conection i am using a usb adapter when connected it ses along bottom of screen time out on clynder count and wont let me do any thing ie take map off or on can anyone help whys it not making connection manythanks ian

Midas · Post by **Midas** » Fri Nov 21, 2008 7:57 pm

Is your adaptor set to Com 1?

Rich

indyian · Post by **indyian** » Fri Nov 21, 2008 8:06 pm

no it is set to 5 on comp dose it make any difference many thanks ian

Midas · Post by **Midas** » Fri Nov 21, 2008 10:08 pm

indyian wrote:no it is set to 5 on comp dose it make any difference many thanks ian

It did with mine! You've got a PM.

Rich

Post by **brentp** » Fri Nov 21, 2008 11:11 pm

Hi,

You definitely want to ensure the COM port settings in the software matches the USB settings. You can verify what COM port your USB adapter is on by going to Windows Device Manager.

Also see:
http://www.autosportlabs.net/MJLJ_V4_Op ... erial_Port

Are you testing your unit on the bench or is it wired into the car?

Thanks,

(PS- I removed your duplicate post in the other forum- apologies for any confusion)

indyian · Post by **indyian** » Sat Nov 22, 2008 12:27 am

hi thanks for the help i have tried all that is listed in link and is still not responding i am using an adapter to usb would this make any difference, also will the software work with vista ? outher than that i donty no what else to do been at it for two days now and it driving me mad culd leed be damaged or falty ecu anyone have any outher sugestions many thanks regards ian

Post by **brentp** » Sat Nov 22, 2008 4:59 am

Hello,

yes, the software should work fine with Vista.

USB to serial adapters are frequently problematic. Just for testing purposes, your best bet is to find a computer with a built-in serial port (like a desktop PC) and test with that. Power up the unit with a fresh 9V battery on the bench. Ensure the LED is shining when powered on. If you can communicate with the unit, then you would need to try a different USB-Serial adapter.

USB to serial adapters that have reported success are ones based on the FTDI chipset and the Prolific chipset.

Some additional questions:

You are using a V4 controller, correct?
Are you using a pre-made serial cable or a home built one?
Besides not communicating, does the unit actually control ignition timing using the default Ignition Map? (i.e. check that it's adjusting ignition timing with a timing light)

indyian · Post by **indyian** » Sat Nov 22, 2008 11:20 am

hi have just checked and i am using prolific chipset and it was a built bought kit from trigger wheels i have just checked again for ecu and it dose seem to make NO difference to the runnig of engine wether its pluged in or not dose this mean its faulty manythanks ian

Post by **brentp** » Sat Nov 22, 2008 5:33 pm

Hi,

With problems like this, it's always helpful to bench test it with a different computer for comparison, preferably one with a built-in serial port. If this is reasonably convenient to do, I would recommend trying this first.

There is an alternate troubleshooting technique using the Hyperterminal program for windows. See here:
http://www.autosportlabs.net/Troublesho ... lt_Lite_Jr.

With the V4 controller be sure to set the baud rate to 38400.

Failing that, I'm sure TriggerWheels would be happy to double-check the unit for you.

Please, let us know what you find out.

Regards,

indyian · Post by **indyian** » Sat Nov 22, 2008 6:33 pm

hi thanks for your reply i have just come back from a family member house were i have bench tested it o a desc top comp that has the corect port on it we done all usual device manager ect so reading right port and all outher settings and still no conection it still reads time out on clynder count so that is 2 different laptops 1 is vista 1 is xp both with usb adapter 2 desc tops 1 with vista and usb and the final one with xp and correct serial port and still nothing i have also done continuity test on lead and plugs i think i am going to cry lol i dont no what else to do

thanks for all the advice fr ian

Post by **brentp** » Sat Nov 22, 2008 6:37 pm

Hi Ian,

I assume you had the unit powered up correctly on the bench (verified power light) ?

If so, your testing appeared to be thorough, I would contact trigger wheels for evaluation and a possible replacement.

Please let us know what you find out.

indyian · Post by **indyian** » Sat Nov 22, 2008 7:22 pm

cheers for the reply i have emailed them and they have basicaly told me same as you have and that they test all befor sending them but if no luck they will test it again wich is just more hasle and time but tipicaly they are on holiday for a week so prob not going to get any sence out of them for ages .
the only outher thing i would like to ask you is that there loom plug that goes on ecu has rong coulered wires on them on won side of plug pins 1 to 8 are backwards so pin one is red 2 white 3 yello 4 black 5 brown 6 green 7 blue 8 white were as ther instructions state oposit to this 1 white 2blue 3green 4 brown 5black 6yello 7white 8 red 9 to 16 are correct to instructions so we asumed someone made a mistake and got them rong way round so we followd the numbers and egnored coulers when wireing up so could this be something to do with it alltho there has allways been a power light manythanks ian

Post by **brentp** » Sat Nov 22, 2008 8:46 pm

Hi Ian,

The colors in the wiring diagram are incidental- they're just there to make it easier to read.
http://www.autosportlabs.net/MJLJ_V4_ve ... Jr._Wiring

What is important is that the correct signals are connected to the appropriate pins on the controller.

Regards,

Midas · Post by **Midas** » Sat Nov 22, 2008 9:34 pm

Whereabouts are you Ian?

There may be someone locally who could have a look.

Rich

indyian · Post by **indyian** » Sat Nov 22, 2008 9:45 pm

i think i might be getting somewere when wrighting that last post i thought i would check something i mentioned i followd pin numbers not coulers becase they were mixed up on loom so i checked it againsed the instructions on this forum and noticed that if i had followed the colers it would of mached your instructions and made us following pin numbers incorect we were feeding aux port as the 12v feed now following your instructions it is conecting on all compputers the instructions that i got are different to yours and more complicated . But next prob is it aint using live rpm or tps gauge on comp when car is running but its NOT displaying no port open or no cylinder count so whats the problem now lol anyone with any ideas