2 weeks ago I pulled a P1320 code and knew it was a coil but haven't got around to replacing it. It wasn't a problem since it's an intermittent thing. Now I get a P0303 code. I'm hoping it refers to cylinder 3 ignition is bad and not some oxygen sensor. If it's cylinder 3 is that the middle rear?

I tried the sticky about CEL codes but the links are all bad. I tried the Yahoo search and came up with mostly threads about people with 303 posts.

Thanks in advance.

 

get new coils
/thread

 

Yes, I already have them and just haven't had a chance to install them. I wanted to make sure that P0303 wasn't related to something else.
I think I've found that P0303 is a bad ignition in the rear middle cylinder so it must be the same problem. I have new plugs to put in too since the current one have more than 100K on them.

 

so if you know its the coils...and you have the coils...what is your question?

 

The search on this site turned up "front oxygen sensor" for 0303. After I posted I searched other Nissan sites which indicated it's not a sensor problem. I wanted to make sure it's just one problem and not two.

 

I suppose you'd find out after you installed them wouldn't you

I hope you didn't buy 6 new ones?

 

if one goes bad, its best to replace them all since they will all go out soon after the first. they should be like plugs...change all 6

 

I bought 6 new ones but so far only installed the front 3. I was glad to see that one of the rears failed instead of one of those that I had replaced. I've had the P1320 code many times but this is the first time I pulled a different code.