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Gallagher99
Gallagher99, Senior Vehicle Technician
Category: Ford
Satisfied Customers: 3015
Experience:  SVQ LEVEL 3, QAULIFIED FORD SENIOR TECHNICIAN , ATA REGISTERD ,12 YEARS EXPERIENCE
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i have a ford focus tdi 1800 reg kp56uye which independently

Resolved Question:

i have a ford focus tdi 1800 reg kp56uye which independently the engine systems fault warning light comes on and car looses power have taken it into local garage they say they can not find anything wrong with it but it keeps doing it
Submitted: 2 years ago.
Category: Ford
Expert:  Gallagher99 replied 2 years ago.
Hi there ,good afternoon to you

Ok what fault codes we're logged when the diagnostic fault code check was carried out

Is there any whooshing or rush of air type noises when you are accelerating


Regards XXXXX XXXXX
Customer: replied 2 years ago.

there was no fault found on diagnostic check no whooshing of air type noises

Expert:  Gallagher99 replied 2 years ago.
Hi there , thanks


Ok if the engine systems Failure message appears and the vehicle has entered limp home mode then there WILL he a diagnostic fault logged
It may be the garage you went to only has a small scanner /code reader which is only capable of picking up generic fault codes not manufactors codes (a common issue with smaller garages )

before going any further a diagnostic fault code check of the PCM Must Be done
This is imperative to correctly diagnosing this fault right first time and saving you a lot of time and Money 
As misdiagnosis of this engine can be expensive 
The engine management system is very complex and technical on this 1.8TDCI  
Thus why a fault code is an absolute must when diagnosis faults 

The most common issue we see on this engine is a split intercooler hose at the drivers rear of the engine
This causes a mismatch in boost pressure. Demand V actual and the PCM detects this and takes the car into limp home mode so it may be worth a
Having a look at this rubber hose. For any splits first
This fault logs a fault code of P0299 turbo underboost

If this hose looks ok then you really need to have a higher quality fault code check done as this is imperative to our diagnostics and resolving this issue correctly

We can continue on this post


If you need anymore help or advice on this issue please let me know 
If you are completley satisfied with my answer /advice 
PLEASE RATE MY ANSWER 
Kind regards XXXXX XXXXX and have a nice day

Brian
Gallagher99, Senior Vehicle Technician
Category: Ford
Satisfied Customers: 3015
Experience: SVQ LEVEL 3, QAULIFIED FORD SENIOR TECHNICIAN , ATA REGISTERD ,12 YEARS EXPERIENCE
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