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Buell Forum » Big, Bad & Dirty (Buell XB12X Ulysses Adventure Board) » BB&D Archives » Archive through August 30, 2006 » Directlink vs VDSTS software « Previous Next »

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Electraglider_1997
Posted on Monday, August 21, 2006 - 07:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What is the difference and which does the most for the money?? I want to reset TPS and Static timing. Are all the bugs fixed in the software?? Cost?
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Mb182
Posted on Monday, August 21, 2006 - 08:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

VDST is the one you want although I don't think it is set up for timing yet - a future upgrade. you can read all the engine parameters with it and trouble codes.. cost is @195 from DAVEs

Direct Link id for tuning of the Fuel Injection system and you need a Dyno for that.. DL does have a TPS reset function tho

MB
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Electraglider_1997
Posted on Monday, August 21, 2006 - 10:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks, but I remember reading way back when about the timing function being just around the corner.
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Electraglider_1997
Posted on Monday, August 21, 2006 - 10:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Years ago I would check the static timing on my old Hondas, that had points ignition, with a hand held turn signal. I'd hook it to the points and when the light would go off I knew the points had opened.
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Davo
Posted on Monday, August 21, 2006 - 10:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You can substitute Digital Technician going to 5 volts with the fuel pump cycling. VDSTS could monitor fuel pump voltage or CPS voltage but the sound of the fuel pump happens precisely at the same time that the CPS goes to 5 volts. The good thing is that the fuel pump prompt is free!
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Electraglider_1997
Posted on Tuesday, August 22, 2006 - 10:33 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Davo,
I'm not understanding what you wrote. Also, what is CPS voltage??
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Natexlh1000
Posted on Tuesday, August 22, 2006 - 05:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

CPS = Crankshaft Position Sensor

(the hall-effect sensor that lives where the points would be)
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Electraglider_1997
Posted on Tuesday, August 22, 2006 - 06:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Davo,
So when the timing mark touches dead center the fuel pump should begin cycling at precisely the same time. If it cycles before or after the mark then timing isn't dead on. So how do I reset the TPS without buying expensive software?? Can it somehow be accomplished with a precision digital multimeter??
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Alex
Posted on Wednesday, August 23, 2006 - 02:07 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Be careful with the fuel pump adjusting method. The pump comes on when the voltage switches from low to 5 for the front cylinder combustion TDC (the point You want to adjust). Still it comes on when the voltage drops from 5 to low, too, for the rear cylinder. If You use that point Your adjustment will be off for some degrees. So You either have to check that the voltage switches from low to 5 or You have to check that both valves in the front cylinder are closed with the piston near TDC (maybe by looking through the spark hole) to be sure Your adjustment is correct.

Regards
Alex
M-TeK-Engineering
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Davo
Posted on Wednesday, August 23, 2006 - 07:23 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Electraglider 1997,

The CPS voltage can be read at at the ECM with a DVOM (digital volt/ohm meter)across pin 3 (GN/W wire)(CPS) on the gray ECM connector and ground. When the DVOM goes to 5 volts it is an indicator that one of the six vanes on the CPS trigger rotor have crossed the CPS. Two of the six are #1 and #2 firing prompts. The fuel pump cycles at each of these vanes as well. I have watched the DVOM while listening for the fuel pump and it is instantaneous. So the DVOM is not even needed if you can hear the fuel pump. As for TPS, I do not have a procedure for that other than software. The CPS solution is analog and the TPS requires digital data to recalibrate the ECM as to where the TPS is positioned during the reset process.
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Electraglider_1997
Posted on Wednesday, August 23, 2006 - 11:11 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Davo,
Thanks.
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Natexlh1000
Posted on Wednesday, August 23, 2006 - 11:19 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Electraglider: The TPS is a potentiometer and can be measured by a DVM but to zero it requires a computer.
This is because when the throttle is closed, the potentiometer is not all the way over to 0 Ohms.
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Daves
Posted on Wednesday, August 23, 2006 - 12:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have them in stock if you need one Electraglider.
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Davo
Posted on Wednesday, August 23, 2006 - 05:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Electraglider 1997,

Your welcome and if you are ever in Virginia stop by for a TPS reset. It takes less than 5 minutes.
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Electraglider_1997
Posted on Wednesday, August 23, 2006 - 09:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Davo,
thanks, but that's a long ride for the reset. Looks like I'll be giving Daves that call.
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Davo
Posted on Wednesday, August 23, 2006 - 10:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Daves sounds like the name of a good man to bring it to.

I use Davo because there are thousands of Daves around here!
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