Engine starts then dies

DIGItonium

Similiar to yours mine struggles to reach idle, gets rough, then dies. Without giving it some gas, it would take at least 3 tries to get the car to idle without dying. So when that happens, I tap the throttle a bit to keep it from struggling and it's fine. It doesn't matter what temperature it is.

I think for awhile people called it a "hot start" issue in which the car wouldn't start after shutting it off. Mine would do this regardless of temperature - even when it's cold.

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Pintsize725

Can you get heat soak issues even without a proper aftermarket intake? I've got the K&N + MAF tube set up.

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Tracie

shaun66

My car does this as well when its hot. That's all I got lol. Hasn't done it in about 3 months though.

andbui05

Cleaned my MAF sensors last night and noticed small improvements when driving. However the RPM issue when doing a warm start is still there. I might put my stock intakes back in and see if the heat soak was the culprit.

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2011 Magnetic Black 370Z | K&N | BERK | SWIFT | SPC | AVANT GARDE

FaustoP

My Nismo 370Z '11 had this happened twice, one at around 30 and close to 40k miles. I now have 46k miles and one or two times it sounded like it was going to do it.

DIGItonium

I remembered at least one owner fixed the hot start issue by replacing the fuel injectors. At least one was leaky after shutting off the car.

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NickTurnon

Sounds like more than just one of us are having this issue.

Seems to be during very hot days after we run the car for a little bit, go inside, come back out and try and start the car.

For me, I just give it a little gas and it revs up enough to keep the car going.

I am going to be replacing spark plugs and cleaning TB's myself and see if that fixes the issue.

My car used to fire up strong 24/7. Now it fires up strong about 50% of the time.

85k on my '09 Z

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2009 Brilliant Silver BASE 7AT | TEIN S-Tech Springs | K&N Drop Ins & z1 Maf Tubes | AAM S-Line Short Tails | 5% Tint | 20MM Spacers | Sport Spoiler NickTurnon's 370z Build

JARblue

It's really not that bad. You're more than welcome to come by and do it at my house if you want some guidance



I might possibly have some time this coming Sunday (6th), but our best bet is probably the weekend of the 19th.

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Pintsize725

No worries, I'm not in a super rush yet.

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Tracie

90 ST

I've had it happen on my '09 with 285,000kms, never cleaned the TB or MAP. happens every now and again, (has over the years, not a new thing)cold start, hot start hasn't mattered. By every once and a while I mean once every 3-4 months it'll happen once. a little tap on the gas and it's good. I don't think it has ever idled awesome. I changed the plugs about 100k ago, so it's due again soon. The TB's I looked at when I changed the plugs the first time and they were clean. I do a lot of hwy driving so they stay pretty clean. lol
Oh I have Stillen G3 intakes...

zefaulter

that may be the highest millage I have heard of on a 370z. Is everything running well? any other mods? do you drive during winter?

Limeybastard

Damn right, whats that approx 200K miles?

90 ST

Yeah, I haven't heard of one as high yet.
G3 intake
Magnaflow exhaust, had a CNT Racing one first, liked it better
Hypertech programmer
I had the SL done twice, once because it failed, the second was the recall
ECU died the first winter, had it changed.
And on my 3rd CSC and Master...
Oh and I had to do the front hubs.

I'm driving down to San Diego with it leaving Calgary on the 12th to the West Coast, (Vancouver) then all the way down the Coastal Hwy, then across to Vegas, and home, I should be about 300k buy the end of the month. I want to get to 400k before I sell it.

And yep I drive it all year round, I run a 350Z 18 with winter rubber.

Pintsize725

Sweet! That gives me hope that I'll pay it off before it dies lol.

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Tracie

90 ST

Regular maintenance and you should be ok. I drive mine a little hard, but change the oil every month, and a full fluid change every year. Other then the few odd things mentioned it's been good, the only real kick in the face has been the clutch issues.