Okay, that tube, goes from one port to another port! It isn't coming out from one port and then "capped off". In between the two ports, the hose has a green/white thing attached to it.

I'm going to give up today.. i went to start the car and it threw a second code: P0411
I'm going to let the dealer handle it tomorrow for the full day.

 

yeah....jeez.....dont know what to tell you. good luck at the dealer..hope they fix it for you.

 

No one mentioned the screens in front of the MAF sensor. Can you confirm that the screens are in place?

 

The screens are in place in front of the MAF. I saw them when I removed the MAF to clean yesterday.

Such bad experience with a brand new car only 3.5 months

 

It makes me feel slightly better that over at the 350Z forums, they have similar problems too:

http://www.my350z.com/forum/showthread.php?t=327166
http://my350z.com/forum/showthread.php?t=307878

 

Ha Ha

 

all cars have problems, and performance cars have more.

i personally enjoy working on my car, every time there’s and issue i look forward to diagnosing it and correcting it.

 

Left the car this morning at 8am with the dealer. Just picked it up and drove home now. They replaced the ignition coil. I ran it through the RPMs... seemed to do the trick. Looks like the coils went bad; will monitor though since the drive is short home. I'm crossing my fingers that tomorrow, a longer drive to and from work will yield NO CEL's or awkward sputtering at high RPMs.... really really crossing my fingers. I feel bad.

My question now to y'all is... aside from possible "manufacturer defect" of the ignition coils on a 3.5 month old car, what could possibly go wrong to have caused it if it wasn't a defect? Are there any particular bad habits of driving that would cause ignition coils to prematurely fail?

 

Speculation time.
I think that the coils can be damaged by excessive heat but I doubt that you got into that situation. Another possibility could be a partially bad spark plug wire putting too much load on the coil and causing it to overheat.
Get some decent plug wires when you have some spare money...

 

I doubt excessive heat. It was stil warm for about a month when I got the car in beginning of October. But warm is like 20 - 25 deg, not HOT. After that it's been downhill dipping into as cold as -15 in Toronto.

They didn't change the plug wires though. Now I have new plugs, new coils, but factory wires. If that is the culprit.. the coils will fail very soon too then and I'll be back in the shop in another few months!

 

Really??? me and a few other guys on the board go down to Mosport every month in the summer and I haven't heard anything about a bad coil... but maybe that's just me...

I do drive the car pretty hard when it's on the track and none-stop for about a 25-30 mins session so it must get pretty hot~ even with a test-pipe, the car doesnt even give me a CEL for the O2 sensor... the only time the CEL was on was when I ran outta gas!! lol

And there was some other codes that I was getting when I stored the car in the summer, and every time the dealer tells me it's a vacu. leak and replaced at least 4 gas caps... and then they suspected it was an air tank leaking.... but after I stop checking for the leak it just went away... I guess the car just doesnt like those grease monkeys from the dealers!!

 

Damn coils. Never would have thought it'd be this.

 

I don't think any Canadian 8s have had an overheating issue with the coils but the coils do fail at some point. How many km on your car?
Maybe your ECU just gave up...

 

Just buy some new ones from RB or Mazsport and remove the possibility...

 

coils, coils, coils, it's always the bloody coils!

 

my car is 3.5 months old and has 6600km on it.

 

Well my car only has about 47,000km since 04... and come to think about it, even tho the engine light isnt on but the car does jerk sometimes... so you think that's the coil problem??

I still have the bumper to bumper warranty till end of this year, if that's the case I'll bring the car back in to the dealer and get it replaced...

 

I can't even fathom how a brand new car ends up with bad coils, unless somebody at the dealership needed four coils in a pinch and took the good ones off your car before you bought it.

 

me neither.. but nonetheless the coils "somewhat" solved it.. I can't say it's 100% solved, cause now it maybe weather related?....

seems like REALLY cold air + CAI is not always a good thing..

Has anybody been able to "hold their throttle" and cruise around 7000 - 8000rpm without any blinking CEL's?

I can go WOT to redline and shift, and there's no problems. But if you ask me to go towards redline at medium throttle, somewhere along 7000 - 9000 rpm, it sputters a bit and CEL starts to flash. The only remedy is either let go of the gas, or floor it and let it go to redline and then shift and it's okay...

 

yeah i can drive between 7-8k with no cel's only did it for like a min or 2 thu

 

Do you have a MS CAI?

 

So sad...
P0300 and P0172 came back on today, sputtering between 6500 - 9000rpm remains at any throttle other than WOT.

Recap:
a) new spark plugs last week
b) new ignition coils on Monday (but not wires)

Same question I want to ask you all:

"Has anybody been able to "hold their throttle" and cruise around 7000 - 8000rpm without any blinking CEL's?"

 

I'll try it out tonight.

 

I get a CEL in that range also, P0301, which I believe is misfire in rotor 1. No one including me has been able to track it down. I have new plugs, coils, and Racing Beat wires. The car seems to run fine though, but does lag a bit on the top end. Its hardly noticeable.

 

Are you asking just those that have MS CAI installed or anyone? If you're asking just anyone, I have no issues like this.

You must have been the one at Scarborough Mazda last week. I was there Friday getting a new starter. One of the receptionists there told me someone had been in with their engine light on. I've been in on and off since last November trying to get my hard start issue fixed (thankfully, it's now fixed). Victoria (receptionist) and I are on a first name basis now .