Bonzo's progress

[big_wasa]

I wouldnt worry to much about the 130 manifold. The ports are bigger but the casting is rough.

Once running on the standard ecu you wont want to bother with the Ms.

[alga]

Originally Posted by twinturbo

If your running closed loop lambda control then th ECU should manage to keep the fueling in trim.

That should take care of idle and cruising speeds, but AFAIK the ECUs break out of closed loop mode once the throttle is more than halfway open.

[Bonzo]

Originally Posted by twinturbo

If your running closed loop lambda control then th ECU should manage to keep the fueling in trim.

TT

I was with you right up to the bit where you said the " Closed loop lambda control " bit

Guessing that this is a standard function to the OEM's lambda sensor & ecu ??

Albert

That part of the engine management is still a mystery to me at the moment !!

When I get to the engine running side of things, i'll get my " Going back to school " head on

__________________________________________________ _____________

Had a good trip to the breakers yesterday.

Managed to find the correct 1.8/2.0 litre, plastic inlet manifold, as was said, a fair bit of size difference to the inlets.
Also collected 1.8 & 2.0 litre throttle bodys + a 2.0 litre injector rail, complete with injectors.

Junior went arround & collected me a good assortment of steering knuckles for my steering shaft mod.

Ohhh & a replacement drivers seat for my eldest's Escort van .

The final tally was £20 for the whole lot, well pleased with that as £10 of that was for the seat

MOT for my Jeep tomorrow, I guess that will curtail my build progress for a few days

[alga]

It's really simple, Ronnie. You're right, it's a function of a stock ECU with a lambda sensor. Most aftermarket ECUs do this as well. Closed Loop is when the ECU adjusts fuelling in a feedback loop: too much unburnt oxygen in the exhaust -- increase fuel, too little -- decrease fuel. This way the engine operates very close to the ideal stoichiometric air/fuel ratio by constantly oscillating around it.

[alga]

BTW, here's a nice site about Ford EFI systems with a gentle introduction:
http://fordfuelinjection.com/

I'm going to try and get the stock ECU to work, too.

[Bonzo]

Thank you for that link

I will have a darn good read of the info there

[big_wasa]

The zetec runs really nice on the standard ecu. Ive done 7 now I think.

I did my mates and it passed iva on that side of it first time.

Mine

If any one locall is breaking an st170 or 2.0 duratec I would love a go at wiring one of them.

All this ecu business baffles me why can't things be simple anymore...

[big_wasa]

Originally Posted by fabbyglass

All this ecu business baffles me why can't things be simple anymore...

They are simple easier than that sticky smelly resin stuff

[twinturbo]

It is simple.

TT