cabernet

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.

SoonerFan

iTrader: (5)

get new coils
/thread

cabernet

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.

SoonerFan

iTrader: (5)

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

cabernet

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.

MacGarnicle

iTrader: (1)

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

I hope you didn't buy 6 new ones?

SoonerFan

iTrader: (5)

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

cabernet

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.