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Help needed ! re battery change on td 5 90

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90Mike:
The fun continues  :twisted: OK then we ran a wire from pin 86 on the main ECU relay (the one buzzing under the drivers seat) down to an earth point and  :shock: it has stopped the buzzing, the fuel pump fires into life and the glow plug relay has switched on all from when you put the ignition on, BUT it still will not start up, it is spinning over nice and fast but not even attempting to start, not even a bit of white smoke from the exhaust  :-k starting to think that the injectors are not putting any fuel in, so does anyone have anymore ideas or suggestions before we start taking the cam cover off to check the injectors  :? 

burgerman:
 As an idea can you not get it plugged in ? may show a stored fault code? or show injectors not pulsing  :-k  Dont really know much about diagnostics, But may be able to point you in the right direction  :?

extreme90:
pointless taking the lid off, you'll only be able to look at the injectors and hum and arr.
is the mil lamp illuminating ?
im abit tired now so the brain isnt working as it should, but ill have a think tomorrow in the day and then have a play with my comp truck tomorrow night.
but [Edited] dont get poking live feeds up any wires.
if you plug it into nanocom it wont tell you much apart from either a logged or current problem with open circuits on injectors.
the ecu wont get damaged unless you cross the polarity...then its shot. my comp truck has a engine kill and even when its been nocked off via that and not the ignition it still fires up.
dan

90Mike:

--- Quote from: extreme90 on March 24, 2010, 23:47:27 ---
the ecu wont get damaged unless you cross the polarity...then its shot. dan

--- End quote ---
Funny you should say that SOMEONE (not me) did flash the live to the body when changing over the battery which was why i was thinking of a poorly ECU  :( the mil lamp will only work when we earth out pin 86 on the main relay,which got thinking about maybe a burnt out earth track in the ECU  :-k

extreme90:
eeek
not good.
i do have a ecu her that will start any td5....but obviously im in stoke on trent which doesnt half the situation.
can you get your hands on any td5 ecu. doesnt matter about the alarm as it will start the engine and stop after around 4 seconds.
that will at least eliminate the ecu

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