Wiring In The Jolt

[Guest The Modfather]

Hi chaps.

 

I will be wiring in the megajolt, edis, VR sensor etc, but I have a few Q's.

 

I understand that the jolt and edis need a switched live (ignition fed) but what rating should this feed be? Will they both need an inline fuse, even though the ignition power is fused?

 

I have also read that the shielded cable for the VR and PIP/SAW should be earthed at the engine block, but the Megajolt website shows that the shielding is earthed via the edis pin 7 and "jumped" to pin 9 for the main earth. Does this earth go to the block or to chassis? What have others done? Also, as the shielding is quite flimsy, how is the best way not to comprimise it?

 

One last thing for now, I am using the Ford thermostat housing which has 2 temp switches, I understand I can use one for the megajolt? Again, has anyone done this, and what benefit is there?

 

Lots of Q's, but hopefully I will be wiser afterwards

[megadodo]

In the instructions there should be a fuse rating for the Jolt, not sure about the Edis (don't know what one is????) but I would be surprised if the need more than 5 amps. If you do fuse them is there ia spare location in the loom fuse bank you can use? If not make the sure the fuse holder (use a blade version so all your fuse types are the same)is easily accessable to check for any issues.

[Guest The Modfather]

Hi Malcolm.

The Edis is a black box of electronic bits that deals with the VR and coil pack, engine management I guess???? Not sure, but it is needed so I guess it is important, lol.

My Megajolt kit never came with instructions, I just followed the website construction details. I have read over it and I'm wondering if I have missed the "what fuse rating" bit, will check again. I don't have any spare spaces in the main fuse boxes as I used the one remaining for the fan switch, so it will have to be a in line one.

I've almost completed the wiring in the front half of the car, just need to attach it all to blocks to plug it into the dash. This is the bit I hate most, electrics. It all just seems a jumble of wire at the moment.

Thanks mate

[megadodo]

Take it slowly, one circuit at a time. Double check everytHing with a multimeter and make sure all items are properly earthed. One a circuit is confirmed , label or connect it up, or both? I'v just done a bit of research and I'd up that fuse to 7.5 amps (it may even need to be more depanding on exactly what the Edis does.

[Guest woolly]

daz have you read this file

 

http://www.autosportlabs.net/MJLJ_V4_vehicle_installation_guide

 

i used a fused 15 amp ing controled supply to feed the jolt coil and edis.

seperate earths for all which whent to the battery as i understand it all using the same earth point is best.

the screen is only earthed at one end not both.

[Guest The Modfather]

daz have you read this file

 

http://www.autosportlabs.net/MJLJ_V4_vehicle_installation_guide

 

 

Hi Chris.

Yeah that's the one I was looking at. I just find it not very informative. It says the supply should be switched via ignition, not a prob, but is that best to do three seperate wires each fused to feed coil pack, MJ and Edis, or one main wire which is fused and then spurred off to feed each one?

What exactly did you do with the shielded cable? I got some stage microphone wire from Maplins, nice and chunky.

 

Darren

[megadodo]

Having read the document there is nothing to stop you feeding all the items of 1 common ignition live feed through 1 fuse although it implies the coil power if fed FROM the jolt pack. It wont matter, as long as all are ignition fed (while cranking as well).

[ZeroKnowledge]

Hi Daz

I have pm you the info I got with my Megajolt V4.

it may be of help.

The sheilding for VR & pip/saw is ONLY connected to pin 7 on edis and pin 9 on edis is earthed

cheers Paul

[Guest The Modfather]

Hi Daz

I have pm you the info I got with my Megajolt V4.

it may be of help.

The sheilding for VR & pip/saw is ONLY connected to pin 7 on edis and pin 9 on edis is earthed

cheers Paul

 

Thanks Paul.

I have replied thru pm, but I'll thank you publicly as well!

 

Darren

[Snapperpaul]

Megajolt fuse rating is 7.5 amp

I have megajolt and EDIS running from ignition side of the fuse box with separate fuses

Shielded wire for pip & saw earthed shielded to pin 7 on EDIS, VR sensor cable shield earthed to pin 7 EDIS. This earth taken to earthily post near battery

EDIS & megajolt earth pin 9 EDIS taken to earthing post .

Strong earth from battery to block.

You want to avoid earth circuit loops that are caused by connecting all earths together before connecting. at earth point.