Megajolt Hard Limiter (Internal)
Turbo Mini Forums

Hi

Stupid question im sure but i have a hard limiter on my megajolt (inside the box) and i think i need to do some wiring for it as i havent yet just installed it as you normally would.

am i right in thinking i need to take the rev limit (output) to the coil?
http://www.autosportlabs.net/images/f/f1/Mjlj_v4_pinout.png

Thanks

T

Edited by t@z on 21st Jan, 2012.

Yes. The coil is fed by the limiter rather than an ignition live.

In the 13's at last!.. Just

ah thanks that makes sense i just wasnt actually sure it was fed or confused how it worked together.

easy fix :)

yep,

what actually happens is when your rpm limit is hit the limiter switches the feed to the coil through a resistor, this limits the power to the coil and causes an intentional misfire.

im confused with hard cut and soft cut... what is it that say a modern car has where it just sits bouncing. does it have a soft cut already
+

hard cut is where it cuts the spark, sof cut is where it retards the timing.

Or this is what is supposed to happen. Mine has stopped working after 800 miles.

In the 13's at last!.. Just

ok to tried wiring this up yesterday and had a switched + to the coil pin (top left) and then took the rev limit (lop left third in) pin to the coil but it wasnt feeding the coil.

is there anything on the software that i need to do to or am i being a right turnip here?

You must be a turnip I'm afraid as there's nothing you need to do software wise.

Get a multimeter on it and see what's amiss.

In the 13's at last!.. Just

already done that and nothing, wasnt getting a whisper of 1v let alone what i needed.

i think in the summer i'll take it out and see that its actually got one although i asked for it on my order god knows. had it for ages as well now so not sure if i can even question it if it hasnt got it in. but thats the only thing i can think off *head scratch*

Have you actually got the hard cut board installed?

Theres no point connecting the rev limit wire from the standard loom to the coil.

As far as I know, if you order the hard limit board when buying your MJ, it will arrive in a separate bag. I'd be pretty certain that yours doesn't have one fitted.

In the 13's at last!.. Just

You're right. Best think to do is pop it open for a look.

This is what you are looking for.
http://www.autosportlabs.net/Hard_rev_limiter_1.2.0

In the 13's at last!.. Just

ok so just catching up with this as i let it lie and just been enjoying the car & i hate it when you have threads with no working solution.

i emailed the MJ ppl, explained everything and this is what they said....