I got my car back from my mechanic today thinking all was fixed, but as I've just been towed home from my old man, it would seem that we are back to the drawing board!!

For those who don't already know, the car is a 1.6 CVH Efi turbo.

About a month ago, out of the blue, the car cut out while driving about 50mph. GIt wouldn't start again, and the fuel pump was staying on constantly.

Fiddled with the plug on the crank shaft sensor and it started again. Drove it for a bit, then it cut out again, exact same problem.

Fuel getting to the injectors no probs, and sparking ok.

Replaced the crank sensor, with apparently the two differnt kinds you get for this engine??? auto electrician said this was what was wrong.

It started, but then cut out about 15 minutes later. Then looked at the fuel pump relay, and it was knackered, so swapped that, and it started. Left it running for about half an hour, didn't cut out.

Started to drive it home from the garage, it cut out again! But then it started straight away, and I managed to get it home.

I've since drove it about 3 miles, and it's went and decided to cut out again, with the fuel pump staying on constantly again!

Does anyone have anything else they can suggest?? Nearly at my wits end with it!

(Never mind having to drive my mum's scabby N-reg corsa while mine is off the road!!)

 

You got it back from a mechanic and its still not fixed? and your asking on here?

My advice from me to you would be, TAKE IT BACK

Sorry

 

he's my mate, i am taking it back tomorrow but he's not an auto electrician.

we've tried the things we think are wrong, and we're running out of idea's, hence why i'm posting.

 

Ahh sorry

Good luck sorting it

 

More history needed, is it an mfi car with an efi engine loom spliced in or an efi xr3i loom with an fiesta turbo engine loom?

With it being such an intermitent fault i would suggest it could be part of the engine loom with break in a cable somewhere, they tend to get quite brittle around the edis connector and the sensors/senders on the engine.

 

Full Efi loom that was originally in the Orion.

Checked the Edis connector and all seemed fine, but I agree that since it's intermittent it must be something to do with a broken wire or something.

 

is it running an alarm system and if so is it wired though the fuel pump loom somewhere had this on my s2 rst was very similar simtoms and very intermitant just a thought

 

I have a toad alarm system on my car, but it doesnt have an immobiliser.

I'm not sure if it's wired into the fuel pump loom.

We found an air leak today and fixed that, drove the car about all afternoon, no probs. Went out to it tonight and it's doing the same thing again!

Think the next thing we're gonna try is the fuel pump regulator, but I'll def have a look into the alarm system

 

I had a similar sort of issue years ago on a mk4 3i,
I ditched everything alarm related that i could find but that wasnt the problem
Sourced it to a broken/split wire at the starter motor, seemed like it would lose connection with some engine movement or bumps in the road.

 

Well I reckon it's something alogn these lines, just gotta find the wire that's causing problems! :S

Def not the starter, it turns over no probs, it's gotta be something to do with the fueling