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Ford Mondeo Tdci Mk3 - Car Goes Into Limp Mode


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#16 stef123

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Posted 02 March 2013 - 06:16 PM

Hello mate, the Maxiscan Diagnostic Scanner OBD2 MS300 says "NO CODES" on the screen when I plugged it in. The engine was running and even not running shows NO CODES. Should the management engine light be on before it can give us any codes because my car doesn't show any warning lights.

 

Please inform soon.

 

Thank you

Cheers

yes the warning light is indicating there is a fault and that a code has been registered



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#17 ambiguousrocket

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Posted 02 March 2013 - 07:07 PM

Im not familiar with the device, ive looked at it online and it claims to have the Ford protocols, but it may have to be setup/ programmed for these protocols and "generic OBD2" may be the default setting, you will just have to read through the instructions

 

there is a CD rom with the scanner, that may just be the PDF manual or it might have the ford protocols on  

 

Update - you put the cd rom in your pc - and the programme tells you what the fault codes (dtc) mean

 

is the machine lighting up? - make sure its plugged in fully - you may have to push the socket and plug together because of the way it is made

 

it should do something different when you turn the ignition off/ on/ start

 

Yeah mate, everything is fully plugged in. It automatically detects the used protocols and attempts to read for codes. I know it's fully plugged in because it also displays the VIN number of my car, but it's just not coming up with any codes. The car still runs very well but I suspect there must be a fault somewhere. It could be an intermittent fault. I think the best thing is I'll bring it into the workshop and have it properly diagnosed with a better fault code reader.

 

The problem with these workshops is they ask you to change this change that change everything and the car is still not working in tip top condition. I've experienced this before with my other cars. I will inform you of what the workshop tells me. Thank you so much for your tips and advice.

 

 

Hi Basil

I too had a limp mode problem when accelerating. The red 'cog' engine stop lamp would light up rather than the amber engine management light. My code reader is unable to read the faults associated with the red 'cog' only the EML when illuminated.

Worth going to the garage to read the cached fault code/s then tackling the cause if necessary. The diagnosis on mine was EGR valve which I've subsequently blanked off.

Best of luck

 

So it is possible to blank off the EGR valve and the car runs very well? I'll bring it into the workshop but like I mentioned to FOCA these workshops, they ask you to change all kinds of things and the fault is still there. They are basically robbing you.

 

yes the warning light is indicating there is a fault and that a code has been registered

 

There is no warning light at the moment but there was a warning light, it seems to have disappeared. The flashing warning light was the glow plug light. The fault code reader I bought maybe is not so good.

 

Thanks



#18 Tony no1

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Posted 02 March 2013 - 09:28 PM

Thats great all makes alot sense, How much are you selling the "blue Fin" for?

Thanks again, hope to hear, Tony.



#19 FOCA

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Posted 15 March 2013 - 06:08 AM

Thats great all makes alot sense, How much are you selling the "blue Fin" for?

Thanks again, hope to hear, Tony.

I was wanting to get £60 for it, and £10 P+P (tracked, signed for)



#20 FOCA

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Posted 15 March 2013 - 06:23 AM

It's 2006 Year mate. Sorry. Thanks for the info. I will buy one today. Cheers.

Hello again, the 2006 Mondeo TDCI is probably Euro4, if so the EML will come on if you fit a blanking plate - but this can be reset with a code reader

 

I recommend a solid stainless steel plate, mild steel can rust, aluminium can melt (EGR = Exhaust Gas Recirculation) ones with holes are literally a waste of time (and don't "fix" a faulty EGR valve)    



#21 baitman

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Posted 15 March 2013 - 06:26 AM

There is no warning light at the moment but there was a warning light, it seems to have disappeared. The flashing warning light was the glow plug light. The fault code reader I bought maybe is not so good.

this is the problem i had. its the egr valve, mate.



#22 bladeage

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Posted 15 March 2013 - 06:31 PM

Try this!!!!!!

 

Remove and clean the crank angle sensor!

 

I had this very same problem with a 2004 150 tdci estate, it would rev to 3,000 rpm ish and then just cut dead, turn the key to off and it would  restart instantly, it would even drive ok until it got to 3,000 rpm again and would then just cut out.

I had no codes etc etc so I assumed it was electrical and went for the first thing I could think of which was the crank angle sensor.

 

I took it out and found the magnet was covered in metal filings which probably came from the recent clutch change, I cleaned the filings off and   the car started and drove like a rocket again.

 

The problem was/is that the ecu is/was not getting a strong enough signal from the sensor so cuts the engine when it goes above its safe threshold for the signal it is receiving.

 

It is worth a try as you are describing exactly the same as I had!

 

P.S. I had to take it out a further 2 times to clean over the next couple of months but after that it was fine!



#23 FOCA

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Posted 15 March 2013 - 08:31 PM

The crank angle sensor would have been covered in metat filings due to the (old) DMF/ clutch breaking up 

 

Good point though and worth checking especially if the DMF has/ is breaking up  

 

Another good reason for fitting a solid flywheel  

 

In my opinion, fitting an EGR blanking plate first is a good idea because it eliminates the EGR as the source of the problem and it only costs about £5 for the plate , its easy to fit on a mk3 Mondeo and the car will run a bit better with the EGR blanked (a win - win situation)  



#24 mintalkin

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Posted 15 March 2013 - 10:38 PM

you may be having trouble with the code reader because diesels were not obd2 untill 2004.



#25 FOCA

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Posted 15 March 2013 - 11:04 PM

you may be having trouble with the code reader because diesels were not obd2 untill 2004.

The OPs car is 2006 - it says 2001 in his profile -



#26 FOCA

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Posted 15 March 2013 - 11:06 PM

It's 2006 Year mate. Sorry. Thanks for the info. I will buy one today. Cheers.

See - 2006 so fully OBDII compliant



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