I pulled my Autopal E-codes over the weekend to re-seal the harness connectors. They show some slight corrosion where the metal housings seal to the glass along the bottom edge. I sealed the boots up with silicone paste and popped 'em back in. I wouldn't buy Autopals again considering to the problems others have had, but mine have served me well for 6 years and 30K miles. When these eventually give out, I'll probably buy Hellas.