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Thread: Astra 1.7 dti wont start

  1. #1
    Join Date
    Oct 2009
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    14

    Default Astra 1.7 dti wont start

    Astra van dti my 2000. Won't start it spins over but will not fire. I have had my snap on code reader on it and theres no communication but it has communicated with the vehicle previously. I think the ecu has gone down.Just wondered if anyone else has had the same problem. Thanks.

  2. #2
    Join Date
    May 2008
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    8,516

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    Take it yours has the silver box on the back of the pump down the rear of the engine?
    Remove the box and open it up. Use a soldering iron and carefully resolder the main joints around the circuit board.
    Somewhere on here there is a picture of the joints that go dry. If no luck on here, Google it and you will find the picture. Its a very common problem.

  3. #3
    Join Date
    Oct 2009
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    Had the ecu open(the one on the back of the pump). All soldered joints seem fine. Going to have the ecu tested next. Any other suggestions? Thank you

  4. #4
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    May 2008
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    A specialist repairer will probably re-solder it for you. Fingers crossed it will then be okay.

  5. #5
    Join Date
    Oct 2009
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    14

    Default

    Ok had the ecu re soldered by a secialist still no luck. Any other suggestions. Thanks

  6. #6
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    May 2008
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    Try a quick squirt of easy start to see if it will run for a second or two. If it doesn't then its a mechanical fault - compression, timing belt, camshaft etc.
    If it does check the fuse box under the bonnet. There is a 20 amp for engine management and a 60 amp as well. Best check them all.
    In the relay box under the bonnet is the engine control relay at no.4 and the fuel quantity adjuster relay at no.6. Check them by swapping with same type from a circuit you know works.

  7. #7
    Join Date
    Oct 2009
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    14

    Thumbs up

    I tried easy start and it ran for a moment.I think it is an electrical fault because it still has no communication with the scan tool. I will check the relays.Ive already checked the fuses under the bonnet and they're fine.There is one other thing,the cooling fan is running constantly and the temp gauge doesn't work.Don't know if this is in anyway connected. Thanks for your input hometune, you have been very helpful.

  8. #8
    Join Date
    May 2008
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    The coolant sensor is above the gearbox. make sure its connected. May be worth trying a new one?
    The coolant control module is behind the bumper on the passenger side. They are prone to failure. Not dear from Autovaux either.

  9. #9
    Join Date
    Oct 2009
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    14

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    Ok checked all the earths and power to ecu. All seem to be present.Checked all fuses and relays.I'm thinking ecu the one on the top of the engine.Going back to when it stopped the temp gauge stopped reading and now theres no management light or glow plug light.So i'm presuming the ecu is just not switching at all.
    Does the ecu have to be programmed? And if i used a second hand unit will i need the key(transponder) and transponder reciever? Or could i just put a second hand ecu on? Thanks

  10. #10
    Join Date
    May 2008
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    8,516

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    Make sure there is a good earth to the ECU.
    If you take yours off the best solution is to send it for test/repair at a company online. Then you won't need to worry about coding it all in.
    If you swap it you will need to find someone with special diagnostic equipment to code it in.
    You could get the engine ECU, immobiliser unit (under and behind steering column), ignition read coil and key with chip in it and change the lot.
    Best option is to send it off. I use BBA Reman - Google for details. Maybe a bit dearer but good fast service. They will collect from you next day and usually turn round in 3.

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