rough idle and several codes

[stryker59101]

Hello all. Just bought a 61k 05 LS and it is having multiple codes. P0300, p0307, p0356, p0358, and doesnt seem to have as much power and you can feel it missing at idle. Do i just need to replace all the coil packs? Thank you.

 

[waggs]

I've learned on this site its always better to replace all coils and plugs at the same time.

 

[BigBalla39213]

Hello all. Just bought a 61k 05 LS and it is having multiple codes. P0300, p0307, p0356, p0358, and doesnt seem to have as much power and you can feel it missing at idle. Do i just need to replace all the coil packs? Thank you.

•P0300 Random/Multiple Cylinder Misfire Detected
•P0307 Cylinder 7 Misfire Detected
•P0356 Ignition Coil F Primary/Secondary Circuit Malfunction
•P0358 Ignition Coil H Primary/Secondary Circuit Malfunction

Looks like you got some Hit and Miss going on. I would say Replace All Coils and Plugs. At least change All Plugs, Coil 6, and Coil 8.