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  1. andywhi

    andywhi New Member

    Messages:
    33
    Likes Received:
    0
    Location:
    Manchester, England
    Hi everyone

    Have reported on here in the past about a smokey engine on hard accelleration and its seems to be driving a bit flat with hesitation and puffs of smoke. Anyway, it did a cough today like a misfire so I checked for fault codes and its coming up with a P0370 (4) PUMP POSITION SENSOR SIGNAL. Could this be related to the crankshaft sensor which i've seen on here as a P0370 code? I've also seen it could be the diesel pump ECU on its way out, I've seen a guide on how to fix dry solder joints on it but I thought it was just on the older models (mines a 2003).

    Any help appreciated!!

    Many thanks in advance!!:D
     
  2. tavimage

    tavimage Well-Known Member

    Messages:
    1,590
    Likes Received:
    1
    Location:
    Essex
    P0370 is Crankshaft Sensor

    Where did you get (4) Pump Position Sensor Signal from?
     
  3. andywhi

    andywhi New Member

    Messages:
    33
    Likes Received:
    0
    Location:
    Manchester, England
    The codes were read on one of the "Tech2" jobbies connected to my laptop I bought. I've searched on the net and I'm lead to believe P0370 is both crankshaft sensor and pump position sensor signal, the difference being the number in brackets after it i.e. P0370(4) for the pump.

    I was just wondering if anyone had experienced the same or could shed any light as to what could have gone faulty? The MIL hasn't lit at any time (upto now anyway) just intermittent iffy running and smoke.
     
  4. Evil

    Evil VxON's Vagina

    Messages:
    14,066
    Likes Received:
    4
    Location:
    Mid-Suffolk
    Drives:
    2000 Zafira A 1.8 16V Comfort
    I have some engine spares for a 1.7DTI (Y17DT) engine. . will be listing them later.
    Anything you need, pm me :)
     
  5. kryten

    kryten New Member

    Messages:
    2
    Likes Received:
    0
    Location:
    Lincoln UK
    I have just had this problem with my astra van 17dti 16V Isuzu engine. I have also seen this fault on many other postings over the last few months. This fault will likely be the crankshaft sensor failing. The loss of the crankshaft pulse will cause a loss of timing/sync with the injector pump speed sensor. Before you go changing the injector pump, change the crankshaft sensor. Typical symptoms are:
    Engine cuts out for a few seconds or completely. Re-starts after a few minutes.
    Engine loses timing completely and puffs out white smoke plus misfires.

    Another indicator of this fault is the injector pump timing advancing at tickover, causing a "diesel knock". This is the injector pump spill timing deliberately advancing due to the ECU not receiving a pump timing signal.
    You may also notice intermittent misfire and a gradual deterioration over a few days/weeks as the crankshaft sensor signal degrades.

    The injector pump ECU/EDU unit (on the back of the pump) is another favorite for the above symptoms. This is often associated with dry soldered joints within the unit. This is also a "stock" fault. This electronic module can be changed very easily and does not need to be set up to the ECU or the pump. Exchange units are available for £35 on eBay (delivered)

    Replacement of the injector pump should be a last resort, not first resort.
    Many of the pump sensors can be changed without pump removal from the engine.

    I would not trust any of the dealers or any independent garages to carry out a repair of this fault, as this is known as a classic "stock fault" in the trade. They will lift up to £2000 off you and make out that they changed the injector pump. Or they will remove and recondition the injector pump, discover that they were wrong, change the crankshaft sensor and then charge you anyway.

    It is high time that we had a cull of these so called professional engineers in the motor trade. Ripping of the motorist at any opportunity

    Have a nice day!
     
  6. kryten

    kryten New Member

    Messages:
    2
    Likes Received:
    0
    Location:
    Lincoln UK
    I have just had this problem with my astra van 17dti 16V Isuzu engine. I have also seen this fault on many other postings over the last few months. This fault will likely be the crankshaft sensor failing. The loss of the crankshaft pulse will cause a loss of timing/sync with the injector pump speed sensor. Before you go changing the injector pump, change the crankshaft sensor. Typical symptoms are:
    Engine cuts out for a few seconds or completely. Re-starts after a few minutes.
    Engine loses timing completely and puffs out white smoke plus misfires.

    Another indicator of this fault is the injector pump timing advancing at tickover, causing a "diesel knock". This is the injector pump spill timing deliberately advancing due to the ECU not receiving a pump timing signal.
    You may also notice intermittent misfire and a gradual deterioration over a few days/weeks as the crankshaft sensor signal degrades.

    The injector pump ECU/EDU unit (on the back of the pump) is another favorite for the above symptoms. This is often associated with dry soldered joints within the unit. This is also a "stock" fault. This electronic module can be changed very easily and does not need to be set up to the ECU or the pump. Exchange units are available for £35 on eBay (delivered)

    Replacement of the injector pump should be a last resort, not first resort.
    Many of the pump sensors can be changed without pump removal from the engine.

    I would not trust any of the dealers or any independent garages to carry out a repair of this fault, as this is known as a classic "stock fault" in the trade. They will lift up to £2000 off you and make out that they changed the injector pump. Or they will remove and recondition the injector pump, discover that they were wrong, change the crankshaft sensor and then charge you anyway.

    It is high time that we had a cull of these so called professional engineers in the motor trade. Ripping of the motorist at any opportunity

    Have a nice day!
     
  7. gibfish

    gibfish New Member

    Messages:
    4
    Likes Received:
    0
    Location:
    Leeds
    Hi

    Having similar trouble with my Combo (2002) 1.7 isuzu engine van, yet only misfiring when cold between 2500-3000 revs, does this sound right for this problem or has happened to others? Mine also was showing the fault code as mentioned above, sounds too much like a coincidence!!!!!:mmmm
     

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