I recently had a fuel leak on my 2005 Fiesta 1.4 diesel.

A garage replaced the fuel injector seals, high pressure
pipes, air induction hose and leak off pipe which cured the problem.

A couple of weeks later the EAC fail light started to flash
whenever I accelerate unless I accelerate very gently. It then gets to a
certain speed (about 10mph in first, 20mph in second etc) and won't accelerate
any more with a maximum of about 50mph in fifth.

I took it to a different garage as the first doesn't have
the diagnostic equipment and about ten faults were logged but the mechanic said
none of them relate to the EAC problem or the that the EAC problem related to
the work on the injectors that was done very recently.

The faults logged were:

p1602-immobiliser communication

p1934-driving speed signal

p2912-reverse light switch

p0102-air mass signal (x2)

p0113-air temperature signal

p0336-crank signal

p0562-voltage supply

p0340-camshaft sensor

p0119-coolant temperature signal

He reckoned there was 'restricted engine breathing' so he
separated the exhaust mounting flange but no change then he separated the
catalytic converter from the turbo charge but no change then he replaced the
fuel filter but still no change. He thinks the next thing to try is the fuel
pump but thinks it's not worth paying for as it might not solve the problem and
I should just get a new car.

Any help on how this EAC fault could be resolved would be
greatly appreciated.

Thanks, Matt

Had it on my 04 1.4 petrol. It essentially wrote the car off, as it would involve a trial and error approach to fix it.

The order they wanted to mine in:

Reflash module that controls the throttle etc. for around £80.

New throttle pedal and everything associated around £250.

New throttle body around £800.

All of which werent guaranteed to fix it.

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