Hi. Im in need of help. And getting relativly frustrated

General Topics for configuring, operating and tuning the Megajolt. Also see the <a href="http://www.autosportlabs.net/MJLJ_V4_Operation_Guide">Operation Guide</a>

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Brandonorban
Posts: 6
Joined: Sat Oct 08, 2016 2:54 am
Location: Saskatchewan, Canada

Hi. Im in need of help. And getting relativly frustrated

Post by Brandonorban »

Have my megajolt all hooked up and cant get it to communicate with the laptop.
The edis runs fine. But obviously stuck at 10degrees.
Ive tried a usb to serial converter with proper drivers installed and connecting to the computers serial port with a extention harness as the megajolt cable isnt deep enough.
According to the schematic for the adapter i should have had continuity from pin 5 to 3 and 4
I only had 3 so i went and modified the phone line to bridge 3 and 4
But a timeout message still comes up.
And i am trying to find the proper com but cant with the serial port as nothing says its connected. While the usb adapter itself does show up.
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brentp
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Post by brentp »

Hi, Thanks for posting. let's figure this out.

First, did you build your own cable or did you purchase the add-on cable we offer with the kit?

You can also try these Troubleshooting steps to see if you get any low-level communications to the unit. (Make sure the Megajolt software isn't running when you do these tests)
https://wiki.autosportlabs.com/Troubles ... lt_Lite_Jr.

Will watch for replies.
Brent Picasso
CEO and Founder, Autosport Labs
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Brandonorban
Posts: 6
Joined: Sat Oct 08, 2016 2:54 am
Location: Saskatchewan, Canada

Post by Brandonorban »

Purchased your cable and adapter.
Ill have to see if i can figure out the troubleshooting tonight

Brandonorban
Posts: 6
Joined: Sat Oct 08, 2016 2:54 am
Location: Saskatchewan, Canada

Post by Brandonorban »

I dont understand hyperterminal. Or how to use it
I do have rpm coming out of the megajolt to my transmission controller

brentp
Site Admin
Posts: 6274
Joined: Wed Jan 24, 2007 6:36 am

Post by brentp »

Hi,

If you've never used it, this can help you get started.
http://www.techrepublic.com/article/ste ... -problems/

Basically our instructions in the wiki show how to use it as a back door to check communications with the megajolt system.

I saw your note; the cable we provide only requires 3 wires, it's not necessary to bridge the connections.

A fundamental check: When you power up the unit, do you see a green light? Assuming the system is completely connected (with PIP and SAW lines) do you see ignition advance vary as you vary RPM (using a timing light?)
Brent Picasso
CEO and Founder, Autosport Labs
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Brandonorban
Posts: 6
Joined: Sat Oct 08, 2016 2:54 am
Location: Saskatchewan, Canada

Post by Brandonorban »

Still havent figured out how to use hyperterminal. But yes there is a green light on. And running the timing does advance as it gets rev'ed up

Brandonorban
Posts: 6
Joined: Sat Oct 08, 2016 2:54 am
Location: Saskatchewan, Canada

Post by Brandonorban »

So i followed the hyperterminal diagnostics and the megajolt responded as it said it should.
Turns out i somehow downloaded v3 pc software which was odd because when i went to their site there was only v4 available.
Its working good now tho. Thanks for the help!

brentp
Site Admin
Posts: 6274
Joined: Wed Jan 24, 2007 6:36 am

Post by brentp »

Oh wow - we will need to ensure that's one of the first questions we ask. Good job figuring that out!
Brent Picasso
CEO and Founder, Autosport Labs
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