Ford Transit MK3 Campervan ECU/ ECM diagnostics

[Zeehenk]

Hi everyone! first message on this board.... I hope you guys can help me out! Sorry about any grammar/ spelling mistakes. English is not my first language.

I have bought a Ford Transit MK3 Gasoline/ Petrol campervan last year. During our most recent trip, we experienced some problems that made us end our trip early. The problems are:

Misfires (seems that 1 spark plug is not firing consitantly)
Power loss
Stalled engine
Engine seems to be "looking" for the right fuel/ air mix

When cold starting the car it seems find, but when it warms up, the trouble begins. It's hard to drive it even for a few meters without the engine stalling.

Changed in January of this year:
Spark plugs
Spark plug cables
Power distributor cap (if that's the name )
Power rotor
Valve cover gasket
Air Filter
Oil filter

On the list to exchange:
Bobine ("coil")
Temp. sensor
Fuel filter
Car battery

I'm currently looking for a way to read the diagnostics from the ECU/ ECM, but I can't seem to find the location of the plug to plug in a diagnostics tool. I am aware that the system is likely a "blinking system" and I might not be able to use a computer to get any reading- although I hope that you might have a way to do this!

Attached you'll find a picture of the barcode of the ECM/ ECU, a picture of the serial plate of the car and a picture of 2 mysterious cables that seem to be attached to the ECU/ ECM.

Does anyone have any Idea how to read the ECM/ ECU? And how can I (if needed) reset this system?

Thanks everyone!

P.s. If anyone has some tips on how to bur less fuel with this van, let me know! Currently at 1 liter for 6,5 km :')

[bortaf]

Check the multi plug for the injectors on the loom, had a few misfires on the car version of that engine (i assume it is the 8V twincam), loose or coroded pins, a noid light will show up any inconsistant signals to the injectors ? basicly an LED test light you plug into the injector plug.
Those plugs i think (been a while) the 3 pin is for adjusting the timing for low octane fuel ? it retards the ign and raises the idle depending on which wire is earthed ? as i say it's been couple of decades since i worked on a EECiV managed vehical

[MinorMatt]

92VB ECU says its a mk4 not a mk3.

Those 2 connectors you have shown are for the diagnostics.

The sykes pickavant ACR (with the correct module and lead) will read it, there are other cheaper options too but I can't remember what they are

[Zeehenk]

92VB ECU says its a mk4 not a mk3.

Those 2 connectors you have shown are for the diagnostics.

The sykes pickavant ACR (with the correct module and lead) will read it, there are other cheaper options too but I can't remember what they are

Thanks! I'll start searching for the tool. If anyone has another idea to read it, please let me know!

Also; could it be possible this is an MK4/ MK3 combination or something? Based on your reply about the ECU, it's n MK4. If I look at pictures of the car it also looks more like an MK4 than an MK3, but based on the type plate in the car it's a 66kW model, which only seems to be availible as an MK3 petrol model. Frankenstein van....?

[Zeehenk]

This is the car, by the way. I'm thinking MK3 Nugget High roof?

[MinorMatt]

This is the car, by the way. I'm thinking MK3 Nugget High roof?

that is a mk4,

the 92VB on the ECU is a mk4 part number too

[Zeehenk]

Ok, thanks! Is there any way to read the computer without using the suggested tool? I'm having trouble locating one for a decent price...

Also: would you know how to reset the computer when needed?

[MinorMatt]

There are lots of tools... I just can't remember the name of them. There was one in the UK that was about £15

[MinorMatt]

This is one of them

https://www.ebay.co.uk/itm/236046699670 ... R4C3pZ7JZg

[Chug]

I've had ignition coils cause the same problem, ran fine until warmed up, try swapping the coil (bobine) they are not expensive.

[MinorMatt]

Gunson 77032 is another

[Zeehenk]

Short update for whowever is interrested:

We still; didn't read the diagnostics of the computer. but the van is running well again!
Among other things we've changed the coil and a temperature sensor and checked all the cabels. Found some (almost) molten wires and some shortend cables. Replaced everything and all is well again.

If I can manage to get a diagnostics tool for cheap, I'll try to grab that as well.