If it is going into limp mode, or a warning light is coming on, there will be DTCs srored somewhere. But most OBD readers are very limited, to basic engine faults. You need a system like Forscan, which is a powerful Ford specific system. Cost £15.00 for the interface. Needs a computer of some sort.
hi , i have got a ford focus 2.0 tdci ghia 136 bhp its an 05 plate and for about a week it has shown engine systems fault , when taking it to the garage i was told to use by the dealer i bought it fro … read more
I have a 2006 Focus 1.8 TDCI. On occasions the warning light comes on, the display shows "ENGINE SYSTEMS FAULT" and the car goes into limp mode. Plugging in the analyser at my local garage shows PO380, which I believe is a glow plug circuit malfunction. The fault first happened about 3 weeks ago then went away. Now it comes and goes again.
Diagnostic Mechanic. Vocational, Technical or Tra 2,037 satisfied customers. Focus: 04 1.6 petrol 60,000 miles) broke..Vibration..compression. My focus ('04 1.6 petrol 60,000 miles) broke down last night. Vibration from the engine, loss of compression and power, very low revs. The Green … read more.

Hi there ,good afternoon to you Ok from your description of your Issue the fault lies with the ignition system Common faults on these vehicles are water ingress into the spark plugs through the washer jets /coil pack faults Or plug lead issues The first two being the most common A low oil level will not cause The engine management to come on This light is illuminating due to a missfire

Bob. Diagnostic Mechanic. Vocational, Technical or Tra 2,037 satisfied customers. Ford focus st: the engine management light..code p0420..cat converter. hi i have a ford focus st 2006, its been remaped and been decat. the engine management light comes on and reads a code p0420. which has to … read more.

If the white smoke is from unburned fuel, it can be caused by any of the following. Low compression caused by worn or damaged piston rings, a blown head gasket or a cracked head. Poorly injected fuel caused by a faulty or leaking injector or from a faulty fuel pump. A badly timed engine, there may be a possibility of the cam belt having jumped

It is associated with printed circuit board corrosion. I had the same problem which also caused random failure of speedo, rev counter, temp gauge and engine warning light. Ford main dealer will charge £35+VAT for diagnostic check and if confirmed to be the 'Watch Dog' problem they will fit a new cluster for £99.

Indicator is just a warning that you should wait few more seconds before trying to start the engine. AFAIR Ford 1.6 TDCI engine enters emergency mode when all 4 glow plugs are burnt. So they might have the same resistance because they are all faulty. If they were not replaced previously, you should probably try to change them anyway. If I try to clear the code the yellow check engine light disappears and the tool shows 0 codes, but the warning screen still shows and the car is still in limp mode. After a day it goes back to the first stage again. Hi All, The fault was a dead injector. This Fiesta is an 2007 car and worth less than the Dealership charges. Just to clarify, I used a cheap ELM 327 clone reader with Easy OBD software which saw no codes and the Engine light was NOT on but the powertrain amber warning was. I used the same .
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    • ford focus 1.6 tdci engine systems fault warning light