Mazda 626 s Management system

[THEVIKING]

A friend has a R reg mazda 626 which stopped completly and the garage said the management system has gone. The man said its not really worth doing. I was just wondering how much are these things to buy new or second hand and fit. he was thinking about scraping it but i would like it myself.

[rdv]

This is quite unlikely, was this a Mazda dealership diagnosing this. ECUs rarely fail unless something is done to destroy them. Electric welding without disconnecting the battery would do it or an incompetent alarm fitter or electrician might. �300 to �600 is a usual price.

[THEVIKING]

Thanks. The car died when they where driving.
Just a local garage.

[rdv]

get another opinion, this dos'nt sound like the ECU

[THEVIKING]

Thanks RDV i will. Would be nice to get a bargain car.

[JamesQ]

Actual failures of the engine management system are really very rare indeed. Most commonly it's either a sensor failure, or (most likely) a bad connection in the wiring.

All modern engine management systems will actually self-diagnose pretty well, and report what the problem is, but as each manufacturer has a different set of error codes, and often require specialised test equipment, a lot of smaller garages count problems like this as "not worth the hassle of dealing with".

This is one type of problem where you are probably better off going to an authorized dealer for the make of car, as they will have all the right information and equipment to interrogate the computer.

[THEVIKING]

Thanks James