OT? Ford Fiesta fuel problem?

[The Natural Philosopher]

But the knowledge to interpret them is a little more specialised than teh average grease monkey has at his disposal.

[The Natural Philosopher]

Yes, they tried, but european directives have forced them to open up their codes and the specifications on many components to allow free competition in the provision of after sales parts and diagnostic equipment.

Which is why you can get generic clutch and brake linings etc at much lower costs than from the manufacturers. Though not all ARE made EXACTLY to spec, caveat emptor...

[The Natural Philosopher]

Yeah., I took the Pug in and they said 'its the MAF sensor' because 99% of the time it is.

Not this time tho. It was a water temp sensor ;-)

[:::Jerry::::]

The problem is, when they fail it's often due to another fault further down the line, unless that fault is corrected the new ECU is destined to go the same way as the old one, hence the unthinking / knowledgeable mechanic (which there are plenty in back street workshops I sorry to say) will see an disproportionate number of (repeat) ECU failures.

[:::Jerry::::]

Not always though, at one time (when I used to do more mechanical work) I was able to buy a genuine complete clutch kit for a GM Vauxhall / Opal car from the main dealer cheaper than I could from a motor factor - even though GM bought the clutches from the same component supplier...

[:::Jerry::::]

Not now, fault code "E109" >>> Book of wisdom E109 = fault with XYZ sensor.

So, as long as the 'grease monkey' knows how to read....! Anyway, the average grease monkey will just fit what someone else tells him or her to fit.

[Dave Plowman (News)]

Could be, although it's a poor design of ECU that can be taken out by external component faults, as they're mainly fed of its power rails.

[The Natural Philosopher]

Ther sensor side no, but te driver side, yes. A shorted solenoid being driven by a mosfet will smoke the fet.

[Dave Plowman (News)]

The injectors on my car have series resistors to limit the current.

[Mike Tomlinson]

In article , Parish writes

These can usually be recovered by spraying the insides with carb cleaner and letting it dry. Beware: carb cleaner is nasty stuff. Do it outside.