why is my 99 s-10 pickup misfiring while driving and idoling.and engine light on 1999 Chevrolet S10

the engine light is on, and truck is misfiring

Asked by for the 1999 Chevrolet S10
1 answer
Having this problem now. My battery is low so need new battery, spark plug 6 is missing firing, and my thermastat is being redone or a new one, not really sue what they do. Costing me $490.00 to get all done.