Rough idle and poor start ups in cold weather what else can be replace during tune up besides plugs and wires
You will need to make sure that the health of the car is good. Make sure that the fuel , fuel filter and the delivery is good.
Secondly check the spark intensity, check the plugs, the wires and trigger for the coils. make sure all electrical points are tight and clean so as the starter cranks without any lagging.
Finally check the plug gaps, the timing and fuel tuning.( hope the valve settings are good)
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