hey guys, recently bought a 2000 maxima 158k , The car has a p1320 code ( ign sig ) it would "buck" or misfire 1-2 times a day only at idle at a stop light.. replaced all 6 coilpacks with cheap ebay ones ( i know ) all 6 packs are reading 1.4 OHMs, and replaced plugs with BOSCH iridium... the car ran flawless for 2 days then the misfire came back, more frequently and more intense.... could it be the iridium plugs?? im replacing with OEM NGK Vpowers today.. and ensuring .44 GAP ... any other ideas??? thank you

 

^^ You've made two mistakes...

Aftermarket coils are no good, same for the Bosch plugs.

You need OEM coils, and since you have a 2000 I would advise you get the 2001 coils, they're an updated part that doesn't have issues like the earlier coils did.

For plugs, any NGK will work well, which is the OEM brand. You can use Vpower, iridium, platinum, whatever..

 

Stillwell is right. You only have two option:
:OEM Genuine Nissan ignition coil at courtesyparts.com
: Hitachi brand at rockauto.com.

Third option: Sell the car. Buy yourself a less maintenance car, toyota corolla or Honda civic.

 

The wierd thing is when i put the old coils back in , it hesitated worse then when they were originally in, the same type of hesitation with the new coils. im going to buy the Hitachi's ... any other idea's on what could be causing this?? MAF... condenser.... O2 sensors ? just shooting in the dark there... thanks yall

 

I had a similar issue with my previous car. 2000 I30 with 207k. It turned out to be the clip on 1 coil (passenger side rear) the little green lock tab was missing a little piece. I spliced in a junkyard clip and no more problem. I spent 2 weeks swapping coils, seafoaming, and bought 3 sets of plugs