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Old Jul 17th, 2019, 00:11   #5
SwedishBus
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Last Online: Apr 23rd, 2024 22:00
Join Date: Oct 2014
Location: Isle of Skye
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Quote:
Originally Posted by diplomat2.6 View Post

Secondly, I sense some welding is needed. Where might the ECU be located in case I need to remove it?
Unless you need to weld directly in the vicinity of the ECU or the engine bay in-general, best to leave all these things well alone.

To obviate the risk of electrical surging when welding, disconnect and remove the battery from the vehicle, and ensure it is well away from the car when you are working on it (sparks from grinding are the biggest issue).

Then take the two battery leads in the battery tray that are now loose, and join them together with a solid bolt or a jump-lead if the terminals will not reach each other. This will effective bind the whole electrical system from both ground and +12v rails altogether, and the risk of any induced currents where you don't want them is minimised. That will protect everything on the car, not just the ECU and alternator, and you can leave it all in place whilst you do the welding and finishing.
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1998 V70 2.5 10v petrol
1997 V70 2.5 TDI
2004 V70 2.4 B5244S Auto
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