A few weeks prior to this problem I noticed that idle speed decreased and car stalled when battery cable resistance was high. Burned my hand on battery clamp. Brushed terminals and battery clamps and idle returned to normal.
A few weeks later I donated my 84 Volvo and I replaced the battery of the 93 because my old Volvo battery was new. I have never observed changes in idle speed due to battery resistance being too high. I thought the car should run fine without the battery once it has started. I am an electrical engineer by training, but not an expert in auto ignitions.
Can anyone provide any incite as to why the rough idle? Would appreciate any advice.
Thanks in advance