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Thread: car keeps goin into limp mode! No codes! No idea whats up??

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    Default car keeps goin into limp mode! No codes! No idea whats up??

    Hi all

    Been having an ongoin issue with my cdti 150 now for ages that i cant find the cause off This problem started when i had water contaminated fuel put in the car! I drained the tank! cleaned the filters ect and all seems ok till the next day i noticed the car kept goin into limp mode whilst driving!! I found that if i re started the car then it would be back to normal instantly untill it did the same thing again 10 mins later!
    Whats seems od is the car never fails like this when driving harder and only when cruising And also it resolves itself as soon as i restart the car! Ive had the car tested on tech 2 with no codes of faults showing! Vauxhall have just suggested all i can do is guess parts to change but have said they think like me its fuel related as it started when the bad fuel went in... Im not sure were to start so thought id ask here for tips!!
    They suggested ( fuel pressure sensor on filter housing/ fuel regulator/ failing pump) Im guessing if the pump was failing it would be more likely to play up when driven harder??? Also this has now got alot worste since i fitted a new intercooler after i found mine was split ! Now its goining into limp mode all the time! Any ideas would be very helpfull here guys

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    For anyone that might be interested! I

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    For anyone that might be interested ive solved the mistery of this ongoin problem now by simply goin around the sensors and checking! It seems the fuel pressure sensor on the end of the fuel rail wasnt clipped on fully and was working its way loose with engine movement! Have now pushed it on fully and issue has gone completely ( i hope)

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    Regular Member TonyP2020's Avatar
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    Vehicle : Mokka

    Trim : SE - Orange Rock 's !!

    Engine : 1.7CDTi

    Year : 2014

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    Sorry, but i dont remember seeing your post before.
    Not that i could be much use given what you posted, due to lack of knowledge about the fault.
    No Codes at all??
    To go off on an angle, how did you check the faul codes?
    And did you have the spanner light on at all??

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    Vehicle : Golf 7

    Trim : GTD

    Engine : 2.0 TDI 184PS

    Year : 2014

    Mileage : 40000

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    Have the fuel pressure sensor cleaned, pm wizard m8 I know he done this on his. I really don't know why I say this but I have one of those feelings just don't get hopes up although I hope it solves the issue. Get advice first m8 before removing a part of the fueling system on these engines. Safety is not to be taken lightly - residual or full working pressure can be fatal/ or lead to serious injury if you're exposed to a jet of it.

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    Cheers for the advise gazza but tbh ive already removed the sensor from the rail and cleaned it! I did think about fuel pressure dangers before hand and played it safe but there was no pressure when removed and the job was quite easy tbh.. Was a bit hard to start up again once fitted but ive had no issues since doin the job and all seems good! I am still warry that it might return tho tbh! After all, it is a vauxhall.. lol

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