also do not pull the battery cable while running this will interfear with the computer and when you put it back on could cause a spike and fry the 'puter ..it's not like the old days[:@]..I would check your ground also....

 

hey im having the same prob in my 92 lx 4 cyl.. headlights on heater on.. come to a stop sign and everything goes way down. was reading here to see what i might start at? just started happening a month or so ago ran fine before

 

Yea John, its weird. Went out replaced the positive bat. cable no difference. Negative looks just fine but a solid cleaning made the problem go away kinda???? The problem has become intermittent. I am sure it is a grounding problem somewhere because I have swapped out the alt. battery, positive cable etc. and it still exists. Negative cable is next and then????????? If i solve the problem I will let you know.