Search found 6622 matches

by brentp
Wed Mar 10, 2004 1:12 am
Forum: Operation
Topic: Software questions
Replies: 17
Views: 14586

I never noticed a problem wit

I never noticed a problem with cranking. However, this is a problem that needs to be fixed. Expect to see a new firmware version in the near future. Luca, Could you try programming the KX8 bootloader and using that to program the MJLJ firmware? I had no problems programming 50+ processors with the b...
by brentp
Wed Mar 10, 2004 1:05 am
Forum: Installation
Topic: Knock Sensor
Replies: 3
Views: 4986

The MJLJ doesn't support a kn

The MJLJ doesn't support a knock sensor.. You might want to look into the Saab APC system- it's a stand alone system that regulates boost based on level of knock detection. It sort of achieves what you want- in a different way. Also - I'm running boost as well- about 1 bar right now. I have my ignit...
by brentp
Wed Mar 10, 2004 12:54 am
Forum: Assembly
Topic: Map sensor
Replies: 2
Views: 3726

It sounds like it may be poss

It sounds like it may be possible, but.. it's only $18 extra! :)

Here's how I hooked mine up with two map sensors. Note this was the V1 controller..

<img src="http://picasso.org/misc/mr2/engine_mana ... loseup.jpg">

by brentp
Tue Mar 09, 2004 6:31 am
Forum: Assembly
Topic: just ordered parts......now what?
Replies: 4
Views: 5250

Hi,

Hi,

I just finished sending out a big batch of boards and processors. My next step will be to write up some assembly instructions with pictures.

You also need to order the rest of the parts from DigiKey, you can find that in the hardware link above.

Thanks,
Brent
by brentp
Mon Mar 08, 2004 9:19 pm
Forum: Q&A
Topic: Weird Idea
Replies: 8
Views: 6350

Try raising the voltage on th

Try raising the voltage on the signal - look at the schematic and you'll see how input circuit works with the 5.1 zener diode and transistor.

Screenshots would be good, but I only have a CRT based one. if someone has a software based o-scope, that would be great.

Brent
by brentp
Mon Mar 08, 2004 3:09 pm
Forum: Q&A
Topic: Ready to order!
Replies: 3
Views: 4301

home page

hi,

Hi Neil,

you should find the link in the first article at the top of the home page. Also <a href="http://picasso.org/mjlj/?q=node/view/10">here</a>

Regards,
Brent
by brentp
Sat Mar 06, 2004 3:57 pm
Forum: Operation
Topic: Software questions
Replies: 17
Views: 14586

With the MJLJ it just continu

With the MJLJ it just continues using the max/min value. For idle timing, you would probably set using the traditional process of setting timing with a mechanical distributor, but just using the software to adjust the idle. I presume that one would "box in" the idle region with the specific idle adv...
by brentp
Fri Mar 05, 2004 4:59 am
Forum: Q&A
Topic: Software Trouble
Replies: 11
Views: 9439

Hi, it sounds like you ins

Hi, it sounds like you installed the java runtime. There is an additional module needed for java in order for the mjlj tuning software to talk to the serial port, called 'Java Comm'. download it from: http://java.sun.com/products/javacomm/ unzip the file and read the readme.html file for the install...
by brentp
Wed Mar 03, 2004 8:16 pm
Forum: Q&A
Topic: Weird Idea
Replies: 8
Views: 6350

The red signal. on the MJLJ,

The red signal. on the MJLJ, what you should see is the SAW pulse happening right after the end of the PIP signal, and the SAW pulsewidth should vary based on the configured ignition advance. the shorter the SAW pulsewidth, the greater the ignition advance.

Brent
by brentp
Wed Mar 03, 2004 4:08 pm
Forum: Q&A
Topic: Multispark?
Replies: 2
Views: 4077

Multispark should be possible

Multispark should be possible with a software change, but like it was mentioned before, it's enabled at idle. It was suggested before to add a temp input. However, I wanted to keep things simple to start, strive for a stable working version, and then see where the improvements can be made after it's...
by brentp
Wed Mar 03, 2004 3:50 pm
Forum: Q&A
Topic: Weird Idea
Replies: 8
Views: 6350

simulate PIP signal

Sorry, I missed the part about feeding the EDIS module. Acutally what I meant was to simulate the PIP signal that feeds into the MJLJ from the EDIS module. What you would be able to do with this is verify the SAW pulse is being generated (using an oscilliscope), and also verify the software processi...
by brentp
Wed Mar 03, 2004 8:33 am
Forum: Assembly
Topic: Bill of Materials question
Replies: 3
Views: 4652

parts page

Hi,

I have now have the parts page up. it's available <a href="http://picasso.org/mjlj/mjlj_parts_order.html" target="_blank">here</a>.

The enclosure I used was an LMB-Heeger unit, 4.3 x 2.5 board size, with flanged ends.

Brent
by brentp
Wed Mar 03, 2004 7:18 am
Forum: Assembly
Topic: MJLJ strange behaviour
Replies: 1
Views: 3163

that's actually normal, it's

that's actually normal, it's a side effect of the tuning software. basically it's saying the timer rolled over inside the MJLJ during RPM calculations.. in other words, the RPM was "too slow" to measure. :)

I have to update the software to account for this.

Brent
by brentp
Wed Mar 03, 2004 7:17 am
Forum: Q&A
Topic: Weird Idea
Replies: 8
Views: 6350

that could work, but it would

that could work, but it would really prefer a square wave.

How about creating a simple 555 timer circuit to feed a signal to it?

Brent
by brentp
Tue Mar 02, 2004 4:18 pm
Forum: Fixes/Patches/Updates
Topic: mjljt2.0.2 error on WIN2K & J2RE 1.4.2
Replies: 7
Views: 15202

great!

You should have a red message saying "could not connect to controller" at the bottom.