I got my z6 running recently in my crx, and just drove it to my dads friends to replace a motor mount.The motor runs good itself but when in low rpm's it will drop down all the way until I would put it back in first and start going again. But it only does this when it has to pull a load, like going up hill, because it did fine all the way out to my dad's friends which is mostly straight. But when going up hill it will bog down and want to quit. also when stopping at a stop sign, as soon as you engage the clutch, it just plain shuts off. And once we got the mount replaced, we started it up and it fired right up, then tried again after putting on cone filter, and now its getting no spark at all. I think the ecu pooped out on me but I'm not sure.