ECU's....I Don't Understand!!

[Tewkes]

Right.

Can someone please give me the ins and outs of a ecu. How can only one work one engine. Every engine has to have its own ecu and loom.

If i bought an engine to fit into a car which previously had a 16 valver init but its broke...and it got an unlocked ecu, how much would it cost roughly to unlock it and how isit done and can a normal garage do it? Thanks.

[Lindsay S2]

ECU doctor - need to send your ECU to them and they unlock it for you. Costs about £140 ish, and takes about 3 days.

[Tewkes]

Can any garage do it?

[Chris J]

No.
The ecu doctor is a bloke based in Plymouth, you send the ecu to him, he unlocks it and sends it back. Others may be able todo the same, but I couldn't find anyone else to do my 3 plug vts engine.
http://www.the-ecu-doctor.co.uk/
Technically if the engine is still in the car it belongs in, and you can start it, you can unlock it yourself by unplugging the immobiliser while its running.

[Tewkes]

what if its a single plug?

[recrudesce]

Every engine has to have its own ecu and loom.
carb engines don't very happy