I got a p0350 code on my 2006 de. It seems to start and drive perfectly fine.

I’ve changed all the spark plugs then I got p0350 again along with p0301. So I changed the ignition coil one cylinder 1. Now when I start the car it struggles a bit and is lumpy when it starts. When I use a voltage detector it shows (50-1000v +) in all cylinders except cylinder 1 which only shows (10-49v). Previously when I first got the code it showed (50-1000v +) for all cylinders.

Would it be a faulty coil? It is brand new but not oem.

Thanks in advance for any suggestions and advice!

 

did you change the plugs before you got the error code or after? just wondering if maybe that cylinder 1 spark plug is bad. That would explain why the new coil didn't help.

 

I had the code before I changed the plugs

 

I had the code before changing the plugs

 

I noticed the spring in the new coil is not center. could this be not sitting on the plug properly and causing this issue?

 

you can just push it onto a loose spark plug to see if it goes on easily. without guessing what's happening down in the spark plug well.