I have a 2001 fiesta diesel, but it does not start all the time? when started it runs great. but sometime when I turn the key nothing happens and the immobiliser light flashes very fast.
I was told to leave the ignition on untill the immobliser light stops flashing then count the following flashes, the light flashes 1 time then 5 times therefore the error code is 15 (i think). does enyone know what this error code means. Im thinking that the key needs to be reprogramed but not sure
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Since Fiesta diesels are a pretty new release I would take it back to the dealer under warranty, assuming it is still under warranty. It may be a blocked fuel filter, or contaminated fuel as it sounds like it is starving. Being so new I doubt that'd be the case, unless you've accidentally put petrol in it?? My daughter filled her new diesel up at the petrol bowser on the second fill and paid quite a fee to have the system drained and reprimed with new diesel fuel.
Normally, only 2 things stop a diesel from firing: 1. no fuel 2. not enough compression
No fuel can be caused by (obviously no fuel) or a failed fuel pump. To test, have someone turn the engine over and then sniff at the exhaust - does it smell of unburned diesel? (If you've run out of diesel recently, you may have an airlock in the system, this needs bleeding out.)
Not enough compression needs specialised equipment to test - that's a garage job.