i have a 92 civic si with d16z6 Greddy turbo and for some reason when i pull too hard, the CEL goes on. After i turn off my car and start it up again the CEL is off..anybody have any ideas why this happens?

 

I would think first step would be to pull the come while the light is on. drive it hard get light to come on pull blue plug down jump 2 pins and watch cel flash.
then refer to the sticky at the top of the forum.
need to know the code before any advise can be given