Finished a motor install on a Z and it ran great. Put it to the side and started a motor install on another Z. The second one I had a few issues to work out. After getting that one up and running, I went to move the first Z and it wouldn't start. After a day of rechecking everything over and over it finally dawned on me. I forgot that I pulled the ECU out a few days prior to test on another Z. Sure enough it was sitting on the shelf above my work bench. Installed it and the Z fired right up.