OT Mondeo TDCi flashing glowplug light update 8/6/10
Turbo Mini Forums

I seriously doubt it!

if as Rod says it is the fly wheel sensor, how about unpluging it and seeing if there is a change?

no change = faulty?

Mine's 03 too, first to have the VNT rather than a wastegate but still operated by an air actuator (like a wastegate actuator).

They apparently can stick - probably the only fault I haven't yet had - but a turbo failure is obvious as the oil seals let go quickly.

Code readers tend to only tell if the sensors are faulty but if the thing the sensor is trying to read isn't running true they won't necissarly record it as a fault.

But I, along with several thousand other people, have an aversion to the TDCi DMF and can blame it for anything.....

Schrödinger's cat - so which one am I ???

Do you have a 5v supply to the sensor?
Can you measure the output voltage with the plug still connected and does the voltage increase with boost? You be looking for 0.6v at idle to about 2.2 at 1 bar boost ish. Can also replicate this with a vacuum pump depending on design of sensor. What exactly was the code and don't say map sensor (eg open circuit, voltage low or voltage high etc........

On 5th Sep, 2011 Vegard said:
I stand corrected. You should know

It simply didnt read anything Scrufster

I seriously doubt it!

Wiggy please carry out tests as above and report back ta!

On 5th Sep, 2011 Vegard said:
I stand corrected. You should know

If it is in limp there must be a code or if the light is on also???

On 5th Sep, 2011 Vegard said:
I stand corrected. You should know

Would love to mate but I dont know what the hell youre on about, I dont understand this sort of shit

I seriously doubt it!

There is a very good forum here
http://www.fordmondeo.org/forum/showforum.php?fid/164/

If I've linked it right it should take you straight to the relevant TDCi pages.

Schrödinger's cat - so which one am I ???

this might help fault find it...

pmsl

On 5th Sep, 2011 Vegard said:
I stand corrected. You should know

I seriously doubt it!

Possibly a good development.

The Polish lad at work is doing a mechanics college course, we were chatting earlier and I explained that the light is flashing, it drives, I can feel the turbo spool to about 2,100rpm then it hesitates as the wastegate opens.

He said to check the air flow meter by blowing on it inside the airbox whilst the engine is running. (His English isnt very brilliant) He said if there is any kind of erection then it is working OK, but if there is no erection of any kind then air flow meter is knackered. He meant reaction, not erection.

Anyway Ive blown it as hard as I can and there is no erection of any kind. I disconnected it and drove it 100yds up the road and there was no change. What do you think?

Paul

Edited by paul wiginton on 25th May, 2010.

I seriously doubt it!

Surely, he meant suck it

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

usually if its the AFM, disconecting makes it drive much better! (as the default guestimated map is better than the duff AFM)..

you have 5 things that will cause running like this on these engines, AFM, EGR, Boost leak, Fuel restriction, injector coding

If at fault - usuall telltale sign:
AFM - usually runs better with afm disconected, No fault codes..

EGR - rus better wiht EGR blocked, will have codes relating to AFM, boost pressure and occationally egr.

Boost leak - (split intercooler core etc) will log codes relating to boost controll, AFM, egr, easiest to dignose by simply inspecting the boost hose run for obvious oily bits :)

Fuel restriction - will log codes for high pressure fuel pump / pressure sensor pressure regulator cause is either a failing pump (lift or high pressure) or simply a blocked fuel filter

Injector coding - signs are underperformance / someitmes rough idle cruise flashing glowplug light and no meeningfull codes!

tbo, in your shoes, i would replace the AFM, replace the fuel filter as there cheap,and if accessable, clean and refit the EGR valve. but for the life of me i cant mind how accesable the egr is on these (a good sign it isnt a common problem lol)

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

next time you get it diagnosed could you post up the actual codes in the format P**** :)

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

The airflow sensor can indeed be tested by blowing on it but if you have a multimeter on the signal wire you should see the voltage change as the resistance changes with temperature - it should increase as the wire is cooled by blowing and reduce as the wire heats up again.

On 5th Sep, 2011 Vegard said:
I stand corrected. You should know

If it is in limp mode you may find the afm is not reacting as it should anyway. Start with the map sensor problems and check you have an earth, 5v reference supply and a signal going away by backprobing the plug into the map sensor. You cannot output the codes on these cars by the blink code method like some vauxhalls so FGS get a scanner on it!

On 5th Sep, 2011 Vegard said:
I stand corrected. You should know

the offer is still their of being able to use autologic to see what is going on will bring you up the errors

I seriously doubt it!

Just drove it home with the airflow sensor disconnected, its not back as it was but it certainly was more responsive. Maybe it is that

I seriously doubt it!

Finally found someone who can read the codes, nobody can do anything pre obd2 it seems. I have 1 code P2336 - cylinder 1 is beyond knock threshold

I seriously doubt it!

That would suggest a faulty injector, most likely to be leaking

or injector coding..

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.