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Home > A-Series EFI / Injection > Megasquirt/EDIS wiring question

Coupe

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998 Posts
Member #: 2178
Post Whore

Leyland, Lancs

8th Jul, 2009 at 08:37:19am

Hey guys, just a quick one as I'm sure someone will know the answer to this.

In the Megasquirt wiring diagrams, it shows a 25uF capacitor connected to the live input on the EDIS coil with the other side running to earth - I'm assuming this is a coil suppressor. My question is, what would happen if I tried to run without this suppressor and is it absolutely necessary?

Second question, if it is absolutely necessary, where would my best place be to get one at VERY short notice?!

Cheers,
Mark.

On 15th Jul, 2009 fastcarl said:
 a breif struggle ensued but Will emerged the victor with a pair of undies in his possesion


On 21st Sep, 2009 apbellamy said:
No, but you did chuck your guts up over my front gate the Saturday before! You even managed to get a bit in your arm pit...

Tom Fenton
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Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner

&

TM legend.

Rotherham South Yorkshire

8th Jul, 2009 at 08:48:28am

You can probably get away without it, its purpose is to smooth the supply voltage to the coil.

As for where to get one, have a look around your local scrappy and you should be able to find one.


On 29th Nov, 2016 madmk1 said:

On 28th Nov, 2016 Rob Gavin said:
 I refuse to pay for anything else


Like fuel 😂😂

apbellamy

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King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner

Rotherham, South Yorkshire

8th Jul, 2009 at 09:00:54am

http://shop.ebay.co.uk/?_from=R40&_trksid=...-All-Categories

On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it

*hehe!*

Coupe

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998 Posts
Member #: 2178
Post Whore

Leyland, Lancs

8th Jul, 2009 at 09:05:50am

Cheers for that guys, I'll give it a go without to get the car running for now and I'll get one ordered just to be on the safe side.

On 15th Jul, 2009 fastcarl said:
 a breif struggle ensued but Will emerged the victor with a pair of undies in his possesion


On 21st Sep, 2009 apbellamy said:
No, but you did chuck your guts up over my front gate the Saturday before! You even managed to get a bit in your arm pit...

Paul S

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8604 Posts
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Formerly Axel

Podland

8th Jul, 2009 at 09:23:17am

I've been running my Megasquirt with the Ford coil pack for over two years now without the capacitor and without a problem.........

Untill I moved my widebands close to the coil pack and I've now got unstable O2 readings. It's been suggested that I should fit the capacitor.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Coupe

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998 Posts
Member #: 2178
Post Whore

Leyland, Lancs

8th Jul, 2009 at 09:43:11am

Thanks for that Paul, thats very encouraging - my wideband sensor is at the opposite corner of the engine bay to the coil pack pretty much so I should be fine on that score.

On 15th Jul, 2009 fastcarl said:
 a breif struggle ensued but Will emerged the victor with a pair of undies in his possesion


On 21st Sep, 2009 apbellamy said:
No, but you did chuck your guts up over my front gate the Saturday before! You even managed to get a bit in your arm pit...

Rod S

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5988 Posts
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Formally Retired

Rural Suffolk

8th Jul, 2009 at 09:46:28am

I've been doing all my testing (megasquirt/coilpack) without it and without any problems so far - it wasn't until Paul came up with his O2 readings issue and Denis mentioned the capacitor that I realised I'd forgotten to fit it too....

Schrödinger's cat - so which one am I ???
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