147 1.9jtdm 2005 clogged injectors - Alfa Romeo Forum
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147 1.9jtdm 2005 clogged injectors

Hi, looking for a bit of advice on injector correction values before I trot off to a bosch centre to have the injectors cleaned. Here's the idle values from fiatecuscan pic attached - the car sounds as though its running on 2 cylinders but rev it and its fine and still pulls like a train. So its just on idle with plenty blueish and white smoke on cold start but nothing once its warm. Comments welcome
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Last edited by Roski; 25-03-15 at 19:22. Reason: date of car wrong
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Theres an issue with injector connector on cylinder 3 with these, pull it off while the car is running, if it runs exactly the same thats your problem. Autolusso sell a kit for it. But you do have an issue with injector 3 by the look of your picture.
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(Post Link) post #3 of 6 Old 25-03-15 Thread Starter
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Thanks Hugh - is that the diesel injector wiring repair kit for 16.99 plus VAT? I'll check No.3 tomorrow and report back. Appreciate the input...
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Quote:
Originally Posted by Roski View Post
Thanks Hugh - is that the diesel injector wiring repair kit for 16.99 plus VAT? I'll check No.3 tomorrow and report back. Appreciate the input...
Thats the one.
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So pulled the connector on No. 3 and engine on tickover didn't change, pulled the others and it went to stall so your advice Hugh was spot on. Is it just a bad connector as a matter of interest - you said its always No.3 so intrigued why that's the case?

Thanks again for the assistance, made the diagnosis so much simpler....
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Not sure why it goes, someone mentioned the wiring being too short for that cylinder before to me, and the engine movement loosens the connection over time, don't know if there is any truth to that. You could also try giving the connector a squeeze with pliers, gently, to create a tighter connection, and a spray with electrical connection cleaner as a temp repair, but long term the kit seems to be the way to go. Its an odd problem, doesn't affect the 5 cylinder models at all, which are in essence the same motor with an obvious addition.
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