So last night i started my car and it was not idling smooth, but not really rough and so right b4 i shut it off the check engine light comes on. This morning i went to kwik kar and they told me dealer has to pull this code even though i saw the 1320 on the screen. I then went to autozone just to be sure and it pulls a 1320 twice. He said it could be spark plugs or coils. I have 71k and had the plugs changed at 63k with NGK. I'm guessing it is going to be the coils...but i do not know which one(s). How do i tell which one(s) it is? If it is the coils i'll buy them from daveb and do it myself.

 

if you plan on keeping the car then id replace all 6. if you plan on selling in the foreseeable future then unplug the coils one by one until you find one that does not change the idle of the car. unplugging a good one will make it worse then you will know the culprit(s) when they do not alter anything.

 

thats what i decided on doing because it would be a pain in the @ss to get 5 more codes and all different times if they decide to go out at different times. I am going to call around to dealers to get some prices, i read courtesy nissan in dallas gives a discount to org members and so does jerry rome and daveB...does anyone know what the cheapest price for the updated coils are at this time?

 

Def change all six! herethis place pffers a 25% discount if u order online, and itcomes out to $46.50 a coil i think: http://www.garrands-nissan.com/New%20Website/header.jpg

 

on a side note should i replace the PCV Valve? Dealer said this would help with my mileage issue since i have never seen above 20 mpg in the 10 months since i've owned the car. Has any1 had an increase in mpg after changing pcv valve?

 

nope.. it is a maintenance change,, but I didn't see an improvement.. still 23mpg Hwy