are cosworth ignition amplifiers the same as anything else did ford use them on different cars

 

Bog standard Ford Item.

 

Guinnless, Sorry, you are wrong - Ford ONLY ever used it on the cossie.

Its actually a WEBER MARELLI item and was used on Fiats, Ferraris, Lancias etc...

 

get me another one too al

 

just buy a new one tight bastards

 

going down the scrapers tomoz to get coil pack and bits ect

 

your all wrong as i tried one off a uno turbo and they look the same but didnt work so its a cossi item

 

abdr500, I didnt say ALL were compatiable from the Fiat range.

You are wrong it is NOT a PURE cossie item.

The weber IAW injection system is a "customer" system that was supplied to many
vehicle manufacturers not just Ford.

 

Thats amazing cause the 205 of BADNEWS has a lancia on on it....infact the lancia also had L8 too so does the 205....

 

Fiat:
Croma
Tempra
Tipo

Lancia
Dedra
Delta

as well as cossies........

 

CosRush is correct

 

Thanks stu,

I wasn't going to list every specific model, as im sure you know, there are a few, just the manufacturers....

 

u will also find that a bosch 7-pin hall-effect ignition amplifier (used on plenty of 80's VWs and Vauxhalls) works fine

 

SECS, sorry my bad

 

BUY A NEW ONE - trust me , do not mess with used ones when doing this conversion , i had a used unit , worked fine in the normal dizzy setup, in fact i run it to test it on stu @ MSD's car , ran fine, when setup to run coil pack i only had two cylinders running , now weather this was just bad luck or there was something about the coilpack setup that only uses a certain part of the amp that the std dizzy setup doesnt use i dont know , but it had me and kenny scratching our heads for a good few hours , in the end , brand new amp ( MSD have them in stock ) same wiring , fired on all 4


dont scrimp on parts that you will rely on - trust me - lesson learnt !!

 

That was fooking confusing...
Only a Knight Industries vehicle would show such a fooking error though im sure

 

too true m8 !!!


im coming across this afternoon , so get the kettle on , must be your turn !!

 

Nice one, be good to catch up with ya

 

If it was a real Knight Industries vehicle, it'd have told you what the error was

 

[KITT Voice On ] "Oh very droll Micheal" [KITT Voice Off ]

 

how much are they?

 

One thing that is ESSENTIAL is good earth wiring - the ignition amps are very sensitive to interference on the trigger inputs, and a "good" source of interference is poor earth connections on the engine system loom, with interference being generated by . Cossies are pretty marginal on this front at the best of times, and anything less than how it should be is likely to cause problems.. how many cossie owners haven't seen that erratic tacho activity..? that is due to ignition amp trigger interference.
In a borderline case, changing the amplifier often appears to remove the symptoms of a problem, but in fact it may well be just masking the problem of a poor earth connection, by being able to operate at slightly different trigger signal thresholds.. I've heard a few instances of people trying a "duff" amp on their mate's car and it works perfectly, and vice versa..

 

Richard, you are quite right.

The reasons for this...... (for others as Rich is a clever chappie)

The problem is multipole earth connections needed for proper running.
As the ECU voltage is taken from the engine inlet manifold and the ignition main
earth is taken from the body work.
This generates a voltage differential of around 0.5 to 2.5 volts
(high frequency noise) while the engine is running.
These can ONLY be measured using an osciloscope.

The result is a virtual ground shift which ends up in false input triggering.
As these connections age or work loose, this can cause "marginal"
mis-firing problems.

 

Is a Cosworth Ignition module the same as the ignition amplifier? (reason i ask is i told someone i know that had symptoms of a duff ignition amp/bad earth to check theirs and they said it was "one of the ignition modules" didnt know what they meant by that tho.

 

vroooom ptssssh, When talking about cossies - YES

 

Yea was a 3door mate, they said "nah wasnt ignition amp was one of the ignition modules" just didnt wanna tell me i was right as it had them stumped i guess lol

Thanks.

 

Simon is it better to have an earth for the amps, as close to the amps as possible then?

rather than where they are on the inlet?

As you know i've made a custom loom, but not finished yet, and earthing is something i want to make spot on.

As you can never have enough earths on a ford.

What do you suggest?

 

Ryan, NO..

The earth on the inlet manifold is JUST for the ECU - NOTHING ELSE.

The ignition modules MAIN power comes from a bodywork earth wire.
(E.G. On escort cossie this is bolted on inner wing near original coil)

The ignition module ALSO sends an EXTRA earth to the ecu pin 24.
This is the trigger earth and must NOT be used for anything else.
THIS IS very important that this is wired like this,

 

well on a 3dr its not, the earth from the amp goes to the inlet

 

Ryan, I have never had a 3 door to examine at that level so you may be right !

If it works, no point in moving it

 

ok mate, cheers, and the opposite for me wanted to build mine on a late saph or 4x4 one, but this i what i had available and what the looms going in.

Just checked, as i have the 3dr loom untaped, and yep, 3 earth go to the inlet, Amp, and 2 ECU earths

 

Simon, I think I'm right in saying 4x4 coil/amplifier earth terminates at the plenum too... I've soldered in an extra local one, out of the amplifier connector. Like you, i've spent a lot of time with an oscilloscope discovering how crap they are!!!

 

richm,
Yes it does. Not ideal but can cause problems in the future
as the elctronics degrade.

 

Helpfull info. Hence the 10year bump......