Phil DJ

My ECU reqs resetting but not sure how to do it and what i should be doing after to get it to operate properly.

The ECU type is EEC IV and it's on an XR2i 1.6 8v



Cheers

Dangerous Malcolm..

Just disconnect your battery for a few hours, overnight if possible. Then when you reconnect take it out for a good long spin taking in plenty of different driving conditions (town and B-roads with full use of revs and gears) and avoiding too much cruising at constants.

Rene

as jabba says half on hour should be enough tho

Phil DJ

Thanx very much for the replies.

One more question tho, how long should idrive it for before it should all be set up?

30mins? 1hr?

Phil DJ

Doug

No disrespect chaps but disconnecting the battery will do fuck all !

Phil you need to remove the KAM fuse on top of the fuse box its a yellow 20 amp bugger for 30 mins

KAM = Keep Alive Memory

Pull that bugger out and it will reset the ECU
Then you need to start allow to idle for 20 mins so it learns its new values then go for a drive should sort it


Regards Doug .

Phil DJ

Thanx Doug, much appreciated

Phil DJ

Ok, couldn't find that fuse. the only fuses i have are my ordinary fuses on the front and a load of relays on the top.

So i disconnected the battery and unplugged the ECU. I'll leave it for 30mins still tho

Dangerous Malcolm..

In fairness it says in the handbook, and I quote:

'If the battery has been disconnected these vehicles may exhibit some unusual driving characteristics for approximately 5 miles (8km) after battery reconnection.
This is due to the automatic relearning of the engine management system to the actual engine and may be disregarded.'

Rene

sorry i read unplug the ECU connector that should be sufficient

Doug

Well my 7 years of working for Ford as a specialist technician was undoubtidly for feck all then




Regards Doug . [/b]

reality

Doug.. considering the eec-iv doesn't have a battery in it for any "keepalive memory".. how do you explain that removing the battery doesn't have the same affect as removing a fuse?

Stu @ M Developments

iTrader: (12)

Because the readings for various functions are written to a flash rom and the rom needs to be blanked by a specific command/routine. Out of interest to you cossie boys, The P8 is teh same.

reality

So when you key-on and the ECU see's a particular pin high/low (thanks to removing the fuse), it branches out and performs some erasing sub?

Phil DJ

Either way i couldn't find the fuse so i unplugged the ECU and the battery. Seemed to do the trick anyway

woodz77

out of interest cos im thick why and how did you know you had to reset your ecu ???

Stu @ M Developments

iTrader: (12)

In some cases yes, but most of the time its far better to just use the reset function in the software, accesed by the relevant serial protocol on your ecu scanner. On the aforeetioned P8 eh feature is accessed by bridging three female sockets near the battery on powerup. we also have some software to do it on the new IAW monitors.

Leaving for holiday flight soon, so appologise for not replying to this thead further.

Phil DJ

I had to update my idle valve and had to update my ecu with it.
When i plugged it in and started it up, the engine was still really warm so it set itself up, and when i started it from cold the next morning it didn't want to idle til it had warmed up.

I also had another problem i needed to sort out as well which i didn't notice so i'm gonna have to do it again now so it reads the correct values

Terry Tibbs

And the benefits of resetting the ECU?

Phil DJ

So that it learns the correct values so it runs properly.

The air flow was restricted before and now i've sorted it's not idling properly co it's getting more air now than when it was when it was going thru its setup

Dangerous Malcolm..

They obviously should have consulted you first, shouldn't they. Sue the bastards.

Doug

1st Jabba was not a dig mate I was being sarcastic !

2nd I think that Stu has basically seconded what I was saying so no sueing Ford today lol



Regards Doug .

Phil DJ

Still interested in where this fuse thing could be tho?

Not doubting u or anything, just couldn't see it for lookin.

Even took the fuse box out from underneath the dashboard to look for it