I have a 90 integra and the batt light is coming on when i step on my gas anyone know how to fix this? any help would be nice thank you.

 

Hmm I wonder if your alternator is going out. That was one of the symptoms I had when mine went out.

 

Does it also happen if you turn lights on high beam? Faliling under load. You can check battery voltage running, should be close to 14v. Then see if it drops with headlights on. As suggested above, check alt and battery.

 

Test your alternator out to rule it out.