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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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S40 diesel problemsViews : 4426 Replies : 22Users Viewing This Thread : |
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Oct 14th, 2012, 10:25 | #21 |
New Member
Last Online: Nov 17th, 2012 17:39
Join Date: Mar 2010
Location: brighton
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ok gatos, thanks for your info. im familiar with programming ecu/keys so i think the customer is going to order a second hand one and go from there, i dont think $30 for 3 day subscription is too bad and can be passed on. ill let you all know how it goes.
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Oct 14th, 2012, 10:45 | #22 |
Master Tech
Last Online: May 18th, 2020 10:57
Join Date: Dec 2006
Location: On Contract Dubai Automotve Technical Academy
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Would hold back on the ECU failure first. My thoughts are if no scan tool can communicate then the ECU may well not be fully powered up. When the key is on engine not running have you got the engine managment light coming on during bulb check?
If not then look closley at all ECU power feeds, switched power feeds and all grounds. Check grounds under load ie when cranking. With key on check any 5v refrenced component MAF, CTS TPS to see if you have a 5v refrence voltage, if not ECU is not powering up. |
Oct 14th, 2012, 11:53 | #23 | |
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Last Online: Nov 17th, 2012 17:39
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Location: brighton
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