Hi,
I have just wired up the EDIS unit in the car to the MS1 extra.
When I crank the car I hear the fuel pump prime. On the megatune I see an RPM (about 235 RPM) and can see the injectors being pulsed.
When I put a timing light on the HT leads it does not flash - I am assuming I am no getting a spark to the plugs.

I have tried 2 edis units and 2 coil packs now!
Can anyone please help?
Thanks
Frank

I though the edis unit was the coilpack?

no.


the EDIS is a black plastic rectangle containing the electronics - see above- labelled EIDIS

the coil pack is a big block to which the 4 plug leads connect - above the EDIS.

you need to check that the coil pack is working - if you remove the plugs - helps eninge turn over easier) and leave on engine so the thread is earthed, do you see spark at all?

if not, then you need to see if the EDIS is swicthing the coils - in theory you can test the coils by

quote:

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Originally posted by prawnabie
I though the edis unit was the coilpack?

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does ms1 support edis??

Ahh I see now - all this electrickery sounds confusing - give me carbs and a dizzy anyday lol

Hi,

Yes, the ms1 Extra can handle the edis unit you have to make some internal mods.

The wiring seems pretty simple

Are there any checks I can do - how can I test the vr sensor -

Thanks
Frank

What I would do
Check you have 12v at EDIS AND coilpack in crank position as well as ign on!

(V easy to get wrong!)

If megatune recognises its going into crank mode and showing an RPM -then you have inadvertantly already checked the VR sensor, and ruled it out surely?
(if its wired the same as mine - Squirty gets RPM info from EDIS- which gets it from the VR)

I would also think that EDIS has voltage - otherwise Megatune would also not recognise crank mode as it wouldnt get pulses from EDIS without voltage??

I would just check you have 12v at coilpack and EDIS with ignition in crank as well as run position

then look to check the wiring between EDIS and coilpack has continuity and is wired 100% right


Regards
Rob

I would just check you have 12v at coilpack and EDIS with ignition in crank as well as run position

How do you test this?

Thanks

Frank

quote:

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Originally posted by FrankP
Hi,
I am assuming I am no getting a spark to the plugs.

Frank

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To test you will need one 12v bulb with wire "tails" or multimeter set to volts DC and a voulenteer to turn the key into various positions

Stuff one wire of bulb onto middle coilpack connector (from EDIS) and other to chassis (this should either light the bulb or show 12v on multimeter with ignition key in both run and crank positions)
HTH

Also would take plugs out and lay them on the engine somewhere metal and see if there is a spark when cranking first..but assumed you would have done this ??

Regards
Rob

where in the world are you ? if local I can give you a hand.

I live in Flitwick - a couple of miles from J12 and 13 of the M1

Thanks

Yeh not a million miles but not local either.

The edis will fire the coil pack with out being conected to the megasquirt at 10 deg btdc.

If your not getting any spark, first thing to check is the crank pick up sensor plug wiring is the correct way around.

[Edited on 5/10/09 by big_wasa]

Hi,

Just tried with a spark plug no spark
Will turn the wires around on the vr sensor to see what happens .....