I want to remove the ECM unit from my '99 V70 in order to give it a good cleaning after 90K miles. It does not look like the easiest thing to remove and reinstall. I'd appreciate any hints on how best to do it from someone who has already experienced (the pain of) this operation. I'm thinking it might be best to leave the inlet pipe attached until the unit is unbolted from the intake manifold and then disconnect it. The reverse procedure would be used when reinstalling it. I don't think it is possible to get both arms up in there at the same time to hold the unit in place while laying under the car. Any suggestions? Thanks!