I recently got this Blazer been sitting for 2 years with no battery it had codes P0 200 P0 300 and p03 15 it would run with a Miss but only shift 1st to 2nd gear never try to shift to 3rd I change the plugs and wires it ran great for about 10 minutes and then fade it out and will not start again could this be from the p315 crank relearn