Noticed this the other day coming back from Wisconsin and originally accredited it to junk Wisconsin gas (91 octane with no ethanol)

Anyways so the car jerks at low rpm (under or at 1500 rpm) once the engine is hot. Runs just fine first thing in the morning when it's cool. Nice and smooth takeoff.

Makes it seems like I can't shift but actually the shiftinf is perfect. It doesn't matter how lightly I try to accelerate from say, 1k to 1.5k, it will jerk. Super annoying driving around the city. Will do it in any gear.

Runs perfectly fine above 1500 rpm. If I never let the revs drop below 1500 I would never notice. But driving around Chicago it's much more comfortable to drive around at 1k rpm when I just want to cruise.

My thinking is its the coil packs going bad, not yet throwing a code, and just working like crap when they are super hot. I had a very very similar issue with my old e46 BMW and the coil packs fixed it.

Thoughts? Figured I would ask you guys before dropping $290 on OE coils.

 

Can’t speculate on other causes of the misfire without putting hands on but in the event the ECM does report a P030x and you need coil packs, go on EBay and search by the OE PN 22448-AL61C. About $125 for a set of Nissan coils (not even the Hitachi equivalents!)

Did that earlier this year, nailed the problem I had with a P0305 DTC. Oh, and a set of NGK Iridium plugs were $20 by ref’g the part number.

 

I need this part #22448JA10C because I have the HR engine. Found a couple OEMs on ebay. Each person only has one or two. Maybe I should just smurf them until I have 6.

I am like 95% sure it's the coils.

 

What do you guys know about brands for coils? I see these "genuine Nissan" boxed stamped with "Hanshin" as the maker. However, I discovered other, what seems to be REAL, OEM coils in a seperate box. See the screen shots below.

​​​​​​My other option is getting Hitachi ones which I am pretty sure are the OE manufacturer. I can get those off rockauto.

Thoughts?
MicVelo, how are those ebay ones working out? How many have you put on them?

 

Me personally would do rockauto over ebay any day. I don't trust most stuff on eBay

 

Yeah I'm just going to shell out the $290 for the Hitachis on rockauto. I did some research on those fake Chinese parts. Wow, they make boxes and parts that look almost identical. We are talking like a slightly lighter shade of blue but everything else is a perfect counterfeit.

 

Exactly, I would rather pay once instead of having to buy parts again because they were cheap knockoffs

 

Well guys I changed the coils with OE Hitachi coils and the problem was 100% fixed. Now it's been like a month or two and it's starting to do it again. I thought Hitachi coils were supposed to be good. Cost me $300. Hitachi sucks.

 

my z have same problem, the car jerks at low rpm (under or at 1500 rpm) once the engine is hot. Runs just fine when it's cool and smoot.

did you fix the problem? please let me know if you already fix it and let me know what is the problem.

thank you.