Hi all! newbie has some Q's

General Megajolt Questions and Answers

Moderators: JeffC, rdoherty, stieg, brentp

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Jayem
Posts: 0
Joined: Wed Aug 11, 2004 12:49 pm

Hi all! newbie has some Q's

Post by Jayem »

Due to my ITB project I have no room for dizzy anymore and I need to find some alternative way to fire the spark and what would be better than Megajolt Lite jr. :)
I'm sure that this has been stated some where but what I would like to know is that could I use the MAP sensor that is in my MegaSquirt? I cant get the MPX4250 locally. Or could I use some other suitable MAP?

Thanks!
Humble car enthusiast from Finland.

flashrs1988
Posts: 0
Joined: Sun Jun 27, 2004 8:51 pm

MAP sensor

Post by flashrs1988 »

I think you could use any map sensor, up to 2.5 Bar Absolute, that would work between 0-5 volts
It all depends on what you want to use it for?

Cheers

Steve
Escot Rs turbo, hybrid, Quaiffe dif, 5th injector,21 psi, Megaiolt Lite, wide band lambda.

repton
Posts: 0
Joined: Thu Jul 29, 2004 3:45 am

MAP sensor

Post by repton »

The Megasquirt and MJLJ use exactly the same MAP sensor anyway, so if you have one from a Megasquirt, then it'll work fine in an MJLJ.

Or is the question if you can use a single one for both simultaneously?

Paul

Jayem
Posts: 0
Joined: Wed Aug 11, 2004 12:49 pm

Thanks guys for your replyes!

Post by Jayem »

Thanks guys for your replyes!

Yeah my original idea/question was that if I could use single one for both simultaneously.
Humble car enthusiast from Finland.

framis
Posts: 6
Joined: Sat Oct 02, 2004 12:19 am

MAP Sensor

Post by framis »

Can I use the megajlot jr 2.01 without a turbo? I want to use carbs and no turbo. Does it need to be changed to a vacuum sensor/ Framis

brentp
Site Admin
Posts: 6275
Joined: Wed Jan 24, 2007 6:36 am

Yes

Post by brentp »

Remember that turbo cars still need to be tuned for vacuum conditions as well.

The map sensor's range varies from vacuum to boost. If you're running normally aspirated, the map sensor will simply measure the amount of vacuum- so you will be fine.

Brent
Brent Picasso
CEO and Founder, Autosport Labs
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