Bethingham Posted January 31, 2017 Report Share Posted January 31, 2017 Hi I'm new to this forum. Just wondering if anyone can help me! I have an 03 plate seat arosa (1 litre). The car broke down whilst slow moving started making banging noise. Garage found there was no spark from ignition after changing coil pack, HT leads and spark plugs. Has anyone had this problem before or have any idea what's wrong? Everything else works fine the car just turns over when starting thank you Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted February 1, 2017 Report Share Posted February 1, 2017 was the car checked for any error codes? as that would be the place to start Quote Link to comment Share on other sites More sharing options...
mk2 Posted February 2, 2017 Report Share Posted February 2, 2017 Right coil pack? U sure it was the old coil pack that went? Quote Link to comment Share on other sites More sharing options...
Bethingham Posted February 2, 2017 Author Report Share Posted February 2, 2017 Checked all error codes, showing nothing and both old and new coil pack checked both work fine Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted February 4, 2017 Report Share Posted February 4, 2017 you sure the cam belt hasn't snapped? Quote Link to comment Share on other sites More sharing options...
Bethingham Posted February 4, 2017 Author Report Share Posted February 4, 2017 Yes that's been checked too Quote Link to comment Share on other sites More sharing options...
Sausage Posted February 4, 2017 Report Share Posted February 4, 2017 Define "banging noise". Quote Link to comment Share on other sites More sharing options...
Bethingham Posted February 4, 2017 Author Report Share Posted February 4, 2017 Like a thudding, like the engine was going to jump out Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted February 4, 2017 Report Share Posted February 4, 2017 is the coil pack getting power to it, its interesting that the car hasn't thrown a code, maybe you got complete ECU failure as my understanding is the coil pack gets it signal from the ECU and the ECU gets its information from the cam position sensor Quote Link to comment Share on other sites More sharing options...
Bethingham Posted February 4, 2017 Author Report Share Posted February 4, 2017 no there's no spark to it but ECU fine and had new sensor Quote Link to comment Share on other sites More sharing options...
mk2 Posted February 4, 2017 Report Share Posted February 4, 2017 (edited) if the sensor, ecu, belt and coil are 100%, then the only thing left is loom.... But thinking about it, you'd get a code for a loom fault, since continuity would be broken. Hmmm. Sure the ecu output stage is ok? Edited February 4, 2017 by mk2 Another thought... Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted February 4, 2017 Report Share Posted February 4, 2017 have you checked the fuses, could be immobilser related and the fuse blown, failing that transponder coil or the ignition switch Quote Link to comment Share on other sites More sharing options...
Bethingham Posted February 5, 2017 Author Report Share Posted February 5, 2017 All fuses are fine Quote Link to comment Share on other sites More sharing options...
mk2 Posted February 5, 2017 Report Share Posted February 5, 2017 (edited) 17 hours ago, Bethingham said: Like a thudding, like the engine was going to jump out You have the right firing sequence? Somehow managed to swap things around by accident....? Another thought- checked the crank sensor and wiring? Edited February 5, 2017 by mk2 Quote Link to comment Share on other sites More sharing options...
Bethingham Posted February 5, 2017 Author Report Share Posted February 5, 2017 The car Hadn't been touched at all previous to this Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted February 5, 2017 Report Share Posted February 5, 2017 Try another key as I'm still thinking this may be a immobiliser issue maybe the transponder has failed in your regular key, looks like you may have to get Vagcom and a lead to see whats going on Quote Link to comment Share on other sites More sharing options...
Rich Posted February 5, 2017 Report Share Posted February 5, 2017 transponder starts and dies. does vagcom or a reader connect to the ECU? Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted February 5, 2017 Report Share Posted February 5, 2017 1 minute ago, Rich said: transponder starts and dies. does vagcom or a reader connect to the ECU? I'm running out of ideas, lol Quote Link to comment Share on other sites More sharing options...
Rich Posted February 5, 2017 Report Share Posted February 5, 2017 there's a no start Tt on the Tt forum, I pointed out how to make it go but they're busy ****ing on with the fuel pump. the ECU feed repay under th dash has stopped working similar to the 109 issues here. Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted February 11, 2017 Report Share Posted February 11, 2017 any news on this one, curious to know what the problem is Quote Link to comment Share on other sites More sharing options...
Bethingham Posted February 11, 2017 Author Report Share Posted February 11, 2017 Wire had burnt out between the ignition and coil pack Quote Link to comment Share on other sites More sharing options...
mk2 Posted February 12, 2017 Report Share Posted February 12, 2017 Loom fault then... that's a pain. All sorted now then. 1 Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted February 12, 2017 Report Share Posted February 12, 2017 34 minutes ago, mk2 said: Loom fault then... that's a pain. All sorted now then. you said it first, good call Quote Link to comment Share on other sites More sharing options...
Bethingham Posted February 12, 2017 Author Report Share Posted February 12, 2017 Yes cars all sorted now? Thank you all for your help Quote Link to comment Share on other sites More sharing options...
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