A glitch in EE causes huge timing anomalies in the following state:
- Manual transmission
- Closed TPS
- Operation below 1600 rpm (or 1400 rpm on y-bodies)
Anyone with a manual transmission should really read this document and apply this important timing fix!
Thanks to Solomon for testing and reminding me about this pain in the ass bug, and kur4o for his assistance in finding the table in question.