Search found 247 matches

by alexander
Wed Nov 27, 2013 3:06 am
Forum: Installation
Topic: Values for fuses recommendation
Replies: 8
Views: 7242

i agree with a single 20A, or just put 10A fuses in your 3 fuse holder. all said and done, they are there to protect your wires from burning due to a dead short. even wires not rated for 20A will survive the brief amount of time it takes for a short to blow a 20A fuse. so it isnt really a critical t...
by alexander
Fri Oct 26, 2012 7:13 am
Forum: Q&A
Topic: Iphone
Replies: 27
Views: 27962

this is said without any expertise, but.... *i believe that jailbreaking the iphone has negative implications for updating the OS. ie possibly preventing it? just something to investigate if relevant *surely an app distributed through the itunes store would mean an iphone would not need to be jailbr...
by alexander
Thu Oct 25, 2012 7:23 am
Forum: Q&A
Topic: V4 serial tuning cable question
Replies: 4
Views: 4161

update: having a good look with a magnifying glass it seems that, as alluded to, all the telephone cables i possess, have the wires reversed one end to the other. naturally, getting access to the correct cable and other MJ unit took about as long as it took to remember my username / pwd for this for...
by alexander
Thu Oct 25, 2012 2:54 am
Forum: Q&A
Topic: V4 serial tuning cable question
Replies: 4
Views: 4161

thanks, brent. the cable is just a normal phone cable which works as such, but the reality is i will have just have to take the seat out of the other car to get the known good cable out.

cheers.
alexander.
by alexander
Wed Oct 24, 2012 6:41 am
Forum: Q&A
Topic: V4 serial tuning cable question
Replies: 4
Views: 4161

V4 serial tuning cable question

hi all, remind me: is the serial tuning cable the same as a common and garden telephone RJ11 cable? the V4 in one of my cars is not communicating with the control software, and i am using a standard phone cable for that. the V4 in my other car does communicate with the control software, but that is ...
by alexander
Mon Sep 26, 2011 5:56 pm
Forum: Installation
Topic: Megajolt wiring diagram (Please check)
Replies: 2
Views: 4683

Hi, in order… *your diagram is correct for the Hard Rev Limiter, but bear in mind that is a separate item which you install in the MJ case. It involves a bit of internal rewiring. Is that what you have? *yes, it will be fine to connect all the earths in the loom, then run one wire to a chassis earth...
by alexander
Mon Sep 26, 2011 5:27 pm
Forum: Q&A
Topic: megajolt connection
Replies: 12
Views: 11678

IMHO, any converter involving the USB port on your laptop stands a good chance of being a big headache. if you laptop has a PCMCIA (older) or Express Card (newer) slot, buy a card with the appropriate socket on it eg DB9, and use that. they always work. you will find hidden on this site, plenty of p...
by alexander
Wed Sep 07, 2011 4:53 pm
Forum: Operation
Topic: cardbus serial port adaptor
Replies: 2
Views: 4305

jsut to ask the obvious question, have you selected a port number for the card, which matches the port setting in MJ software?

cheers.
by alexander
Mon Sep 05, 2011 6:36 pm
Forum: Operation
Topic: switching a relay
Replies: 5
Views: 6875

Re: switching a relay

just a quick question , i'm trying to use the mj to switch on a solenoid that will bypass propane at a set rpm and boost level , if i connect a relay switch wire to a switched to earth terminal on mjlt,set at 3200rpm , ,and then the pos wire of the relay switch to the next switched terminal set to ...
by alexander
Tue Aug 23, 2011 10:32 am
Forum: Installation
Topic: Mount trigger wheel where distributor used to be?
Replies: 17
Views: 27030

of course, i do apologise. what an utterly cool vehicle.
by alexander
Mon Aug 22, 2011 5:11 pm
Forum: Installation
Topic: help with shielded cables
Replies: 2
Views: 4189

*'grounding the shield' means that, at one end of the cable, you uncover part of the shield, twist it round into a little pigtail, and solder a wire onto it. that wire is then connected to pin 7 on the EDIS plug, which is there specifically for grounding the shield cables. just make sure the shield ...
by alexander
Mon Aug 22, 2011 4:41 pm
Forum: Installation
Topic: Mount trigger wheel where distributor used to be?
Replies: 17
Views: 27030

you can see pictures etc of my in-distributor installation here: http://www.autosportlabs.org/viewtopic.php?t=1648 it uses the mazda RX7 sensor mentioned above, and a piece of 72 tooth gearstock which i bought online from the USA. then drillled by a machine shop for an interference fit to the distri...
by alexander
Sun Jan 24, 2010 7:35 am
Forum: Operation
Topic: 1 year on, a problem
Replies: 5
Views: 6494

not a bad idea, but when i manage to reverse the damage i have inflicted on the insides of the MJ during my 'inspection', and then actually figure out what is wrong with it in the first place, i think i will be repositioning the box where water cant drip directly on it!
by alexander
Wed Jan 20, 2010 3:55 am
Forum: Operation
Topic: 1 year on, a problem
Replies: 5
Views: 6494

1 year on, a problem

hi, this is quite a similar problem to the previous thread. symptoms: *MJ V3.0.0 board *a few months ago, tacho signal lost (on my digital dash) and car in limp mode. wiggled the wires on the box near my leg. seemed to do the trick. now seems to have been a coincidence.. *very recently, car went sud...
by alexander
Tue Dec 08, 2009 12:30 pm
Forum: Operation
Topic: Power pick-up: Best options?
Replies: 6
Views: 4531

on the subject of fuel cut off relays.. i realise there are several ways of achieving that, but the one i chose is to buy a safety relay intended for lpg installations. they are on while there is a regular pulse from the LT coil trigger wire, but shut off if that stops for more than about 2 seconds.