Mike_Z

yeah he said he did something to the sensor so it wont be back :-) He said he put three maps on the car is this normal ?? Standard, Aggressive and Vallet theres a noticable difference between the three. The Vallet doesnt rev above 3000rpm.

Thought i'd update this encase someone is experiencing the same issue and finds this tread. I got the car re-mapped (uprev) and it fixed the issue. I beleive it was something to do with the exhaust cam. Anyway the uprev fixed it, apart from fixing the issue i would highly recommned it ... the car feels totally different and a hell of a lot nicer to drive.

Found a link to a load of people with a similar issue. Loads of people are saying it the type of oil used. Could the the oil be to thick ? http://my350z.com/forum/maintenance-and-repair/307878-sputtering-during-warm-up.html http://my350z.com/forum/maintenance-and-repair/307878-sputtering-during-warm-up.html I was having this problem with my '07 as well. I have been running 2 different oils depending on the season. 5w30 for cold months and 5w40 for warm ones. In the past 10k miles my car developed this problem. The worst rpm 'hop' or 'chug' would happen when I was creeping in rush hour traffic and driving in second gear @ 800rpm. When I would accelerate slowly, as soon as I got to 1000 rpm, my car would seemingly go dead for a split second causing a big stutter. Someone in this thread was saying its being caused by the cam phaser and the use of heavy oil. I couldn't think how that could be because it would seem if that was the case, everyone who starts their car in cold weather would have the issue. I was using 5w-40 shell rotella t6 when the problem became very bad. I just changed my oil to 5w-30 penzoil ultimate and the problem pretty much went away. If it is the cam phasers causing this issue and the oil, I would like to know why they are so sensitive to the type of oil used! *********************************************** yep, that's kind of it.. although warming up won't stop it. and it doesn't happen for me above 2500, it seems to be around 1800 -2000 most of the time...and at light throttle. Interestingly, if you change the throttle position it seems to go away quickly.. most of the time not to return. I almost suspect something with the TPS, except that it's limited to the "warming up" period.

Hi Guys, I picked up a 07 350z HR during the week. (30,000 miles) I was told the clutch was on the way out and have ordered a clutch from clark motor sport and am happy to replace this either way. From reading the clutch in the 350 HR/370 will need to be replaced sooner rather than later anyway. The car drives perfectly when cold at any rev's, however once warmed up it will jump/judder when you accelerate below 1500rpm e.g when changing gear after you change if you accelerate it will jump/judder once. Once warmed up if you change gear above 2000 rpm this doesnt happen and the car drives fine perfectly. You can floor it and there is no clutch slipping and goes smootly into gear everytime etc I guess this is only noticable in traffic or when driving in residental area's. If you have to slow down or are in a high gear and the revs drop below 2000 rpm it will judder once you accelerate again. This does not happen at all when the car is cold. From google and reading on here this is a commom sympton with the HR model ? except most people say the reverse that it happens when the car is cold. Any ideas what it might be? I dont mind replacing the clutch and will do this once it arrives. I just hope its not something else? I got a substancial discount on the car which will cover the clutch. Also love the car .. (once above 2000 rpm) Cheers Mike

Cool, ill be in touch tomorrow. Just need to try get a little more money off the car. I'm based in Ireland so ill be intouch about shipping. Thanks, who do i ask for when i call ?

Cheers mate, is the Xtreme kit available immediatly? Also is this the same clutch that would go into a 370z? I'll be in touch in the next few days if the Xtreme kit is available. Thanks

Hi Guys, I'm new to the forum but have been reading for the last two weeks. Looks a great very informative place :-) I'm looking for some advice, ive put a deposit on a 2007 HR model and the garage are now saying that the clutch and fly wheel needs to be replaced. They say there is a lot of play when the car heats up, the car is very low mileage. So it seems strange that this would go so quickly? (30,000 miles) They have offered me a discount if i were to take the car as it is. How much would it cost to get aftermarket parts or should i just walk away ? Any advice apreciated. Thanks Michael

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