Not quite an H body but close enough for me...
This is on a 1990 6000 LE. I have had an engine light that comes on every now and then, but not always. Once on it stays on. I just jumpered the OBD connection and got code code 32: EGR system per the BC tech info article here.
A little background on the car. I normally drive a '95 SSEi so I am not very familiar with this car yet (sisters/fathers car). I did however recently put in new fuel injectors about 100 miles ago. The car sat for about a month after the injectors were installed and about 3 months before they were installed. Other than that the car has been running great. Even with the SES light on the car still performs up to standards.
What would cause this to go off?