I have a maxima 00', and I am doing the regular tune up for my car and I was wondering if it is a good idea to get the NGK laser iridium plug part #7944. Are they too extreme for my max or should they be fine?

 

I think that would be okay. I use laser platinum myself.

 

no SES light yet? Because I have heard a few stories about air intakes, that people install aftermarket airintakes and their MAF sensor goes crazy.

EDIT: What difference do you notice with laser platinum?

 

Laser Pt is stock, so probably nothing.

 

My bad I meant Laser Iridium. Sorry!

 

Strange PN you got there. Any more info on this plug?

 

again my bad it is 7994.

 

I was expecting something along these lines :

PFR5G-11

 

That is an NGK stock#, not a part#. That would be the OE Laser Iridium IFR5E11.

I would save my money and just get the NGK platinums, but that is just me.

 

If I get the laser iridium would it drop my rpms? Because the sole reason I might buy them is because I want my car to feel like it is not started when I am stopped.

 

It wont drop your idle RPM's but it has been said to idle smoother. I noticed that with my current plugs (Iridium). But, it could have been a number items, most namely, they were well over due for a change.

Also, to add to what mtrai stated, it is not worth it to pay that much more for a smoother idle.

 

Your idle RPM is controlled by your ECU, not by your spark plugs. At idle in neutral with no accessories on and fully warmed up it should be solid at 750 RPM.

 

what are the possible things which could make my idle smoother? I know distributor cap is one of the things? any others?

 

in Neutral it is solid at 750 and feels like the car is not started but when I put it in drive it is not as smooth.

 

Worn motor and transmission mounts are a commom culprit.

 

I guess there is nothing much i could do about that.

 

You could replace them, but it is going to be pretty expensive for new ones.

 

The price for the actual mounts are not bad, it is labor involved that can get costly/time consuming.

And we do not have distributors here.

 

Grounding Kit (made by Shinduho I think?) made a lot of difference in my RPM.

 

Iridium plugs will last longer than platinum, supposed to potentially go 200k between changes.

Iridiums did make a difference in my 626 but the plugs in it were getting old so hard to say how much of the improvement was the actual plug material and not just that I replaced old plugs.

 

That sounds so familiar.

 

i have never had a set of plugs last as long as 200K

 

maxima 5th gen doesn't have distributor? I heard few newer cars come distributorless, didn't know maxima did.

 

how about those pulse plugs im not doing(expensive)but was wondering if anyone had experience with them.

 

4th gen+ has no distributor.

 

I got your back on this one. Just making sure it isn't just one person saying it.

 

Pretty expensive plug to have to pull the intake (5.5 gen) and replace every 50k miles.

 

Yup, always helps, there’s power in numbers (quantity)

 

replacing the NGK platinum ones with the Iridiums ones... will let everybody if I feel somethnig different. As for the price they were the same 9.99 each.. Autozone.. Orlando Florida.

 

I've been running those iridium plugs as well, one step cooler since I do alot of highway driving and going to the strip now and then.

 

I run 1 step colder on my rear bank only .

 

NGK Iridiums were $6.99 each when I bought them for my old 626 about 18 months ago.

 

Invalid apples to oranges comparison. Even from 01-02 the PN is different.

 

Since I only do about 1/2 my driving on the highway, does that mean I should stagger and run every other plug cold?

 

Do 1 bank only...

 

so what is the verdict? should I go ahead with those iridium or not? I have 133 miles on my car right now.

 

what is a grounding kit? should I get it?
BTW I only got my car recently in april and it had 132 miles on it.