Pinto EFI to carbs

[twinturbo]

More or lesssiy..

Unlike the ESC-2 on teh 1800 pinto the TFI has no idea about anything other than a distributor signal.

ESC2 gets vacume load data and can work out the spark timing.

TFI can't work out anything other that static spark timing on it's own. the TFi will spark at a preset timing interval if left to it's own devices. it does however relay the PIP ( Profile ignition Picup ) signal from the dizzy to the silver box ( the EEC-IV ECU) which process that data, combines it with the data from the coolant, air flow, air temperature and speed sensor. and then sends a SAW ( spark angle word ) back to the TFI to fine tune the spark, and at the same time controls the injectors.


Fuel injection of this era is very simple yet very effective. Modern systems are not vastly advanced, usualy just adding emissions control valves and sensors.

TT

[HandyAndy]

Originally Posted by twinturbo

More or lesssiy..

Unlike the ESC-2 on teh 1800 pinto the TFI has no idea about anything other than a distributor signal.

ESC2 gets vacume load data and can work out the spark timing.

TFI can't work out anything other that static spark timing on it's own. the TFi will spark at a preset timing interval if left to it's own devices. it does however relay the PIP ( Profile ignition Picup ) signal from the dizzy to the silver box ( the EEC-IV ECU) which process that data, combines it with the data from the coolant, air flow, air temperature and speed sensor. and then sends a SAW ( spark angle word ) back to the TFI to fine tune the spark, and at the same time controls the injectors.


Fuel injection of this era is very simple yet very effective. Modern systems are not vastly advanced, usualy just adding emissions control valves and sensors.

TT

I remember the days of points & condensor, I could handle them
Good luck David

cheers
andy

[dogwood]

OK thanks TT.

Think I have a better idea now of what I'm looking for.

If there is no spark then it's the fault of the TFI.
And not the ECU, which is where I was looking.

So back to you earlier post.
If I check power and earth to the TFI is ok
and still no spark then its coil end not ECU end

If that is correct then I'll strip out the loom again.
And redo the TFI to coil and dizzy connections.
And ignore the ECU for the moment.


It's half past bedtime for me.
So logging off now.
But will log on again in the morning.
Then I can digest what you said with a clearer head.....

[twinturbo]

Yes..

As a start, short the coil -ve to ground manualy to induce a spark and test teh coil

TT

[Bonzo]

How's it going with your electrics David ?

Let's hope today has been a bit kinder to you mate

[dogwood]

Originally Posted by Bonzo

How's it going with your electrics David ?

Let's hope today has been a bit kinder to you mate

Thank's for the thought mate, but not even close....
Wasted another day and still couldn't sort it.

So finaly given up on the bl**** injection stuff.
Refitted the Weber and 1800 wiring.
Had it firing up right off.

Main thing is, if it goes wrong at least I should be able to fix it.
If the injection stuff packs up I wouldn't even know where to start.

All I got to do now is get a manifold gasket.
The injection one ain't no good with the carb manifold.
Found one on Eblag so should be ok

Brings up a question for those that know:
The injection head has that oval/egg shaped inlet.
I will be OK with the round inlets on the carb manifold wont I??????

[Bonzo]

Originally Posted by dogwood

So finaly given up on the bl**** injection stuff.
Refitted the Weber and 1800 wiring.
Had it firing up right off.

Main thing is, if it goes wrong at least I should be able to fix it.
If the injection stuff packs up I wouldn't even know where to start.

Going to be in the same boat as you mate .... I am starting with the modern injection route .... Gonna be B*****d if it goes wrong at a later date
Could write all I know about injection systems on the back of a stamp

I assume the shape of the inlet ports on the injection head are all about air flow .... Being as you are using carb, I doubt there will be quite so much demand for such a smooth air flow.

You may find that the carb is a little under jetted for the extra 200cc though .... Guess you won't know the full efect until you give it a test drive mate

[AshG]

dave when you come back bring the injection stuff and i will learn you how to do it

if you cant be bothered then im sure i can get you a session down ATSPEED on their rolling road to set the carb up proper so it dont go bang.

failing that i could always sort you a megajolt and bike carbs.