P0301 Cylinder 1 Misfire Detected
P0351 Ignition Coil A Primary/Secondary Circuit Malfunction
Generally a coil pack runs two spark plugs so a bad coil pack would affect not one, but two plugs generally. Plus you've already found that out by changing out the coil pack.
That leaves a problem in the number one, plug gap perhaps, but more likely the plug wire. I'd probably do both, change out the plug and replace the wire, and see if the problem comes back.I have trouble codes P0301 and P0351 which is a cylinder 1 misfire and Ignition coil A malfunction... HELP?
Usually the easy way is swap parts from a good cylinder, move coil,wire and plug from a cylinder that is working correctly and not the companion if you have waste spark type ignition(your coil probably goes to 2 cylinders that's what is referred to as a companion cylinder). Be careful don't remove spark plugs from a hot aluminum cylinder head or you may pull out the threads.I have trouble codes P0301 and P0351 which is a cylinder 1 misfire and Ignition coil A malfunction... HELP?
Even though we don't know what vehicle you have....
With these two codes together... I'd say its time for a tune up. Replace your plugs with an original equipment equivelent platinum plug.... and check for a vacuum leak.I have trouble codes P0301 and P0351 which is a cylinder 1 misfire and Ignition coil A malfunction... HELP?
pull plug and look at it. if looks white to tan colored it is firing. if you didn't get codes reset after fixing problem start with that first. computer retains code on misfire until reset.I have trouble codes P0301 and P0351 which is a cylinder 1 misfire and Ignition coil A malfunction... HELP?
switch 1- 2 wiresI have trouble codes P0301 and P0351 which is a cylinder 1 misfire and Ignition coil A malfunction... HELP?
make year model?
