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370z is dropping cyliders intermittently

31 posts in this topic

Posted · Report post

Does anyone have any idea why my 2011 370z would run ruff and feel like a broken 4 cylinder? engine mods cold air, extractors and cat back exhaust.?? Sent from my SM-G930F using Tapatalk

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Posted · Report post

Cold air intake may (especially if it's oiled filters) may have caused your maf sensors to get dirty. Try cleaning your maf sensors

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Posted · Report post

thanks will do Sent from my SM-G930F using Tapatalk

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Posted · Report post

Oil on the coil packs is common(ish) - can require new rocker covers

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Posted · Report post

thanks have been going through oil but can't find any leaks too. top up oil and clean mafs and she goes ok for a week or 2 then does it again. if I go back to stock air box do u think that would help? Sent from my SM-G930F using Tapatalk

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Posted · Report post

Certainly sounds like MAF getting contaminated

Does the CAI use oil in the filter element?  That's not good for the MAF

Clean the filter element and run it without oil for a month - otherwise revert back to stock air box 

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Posted · Report post

looks like it's something else. Mafs have been cleaned and oil topped up engine is popping and misfiring still non stop. any ideas ☹ Sent from my SM-G930F using Tapatalk

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Posted · Report post

These things generally can't be diagnosed over the internet - at a minimum you need to connect to the ECU to check for errors - then full diagnosis procedure

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Posted · Report post

thanks anyways was just wondering if u had heard of it before. Diagnostic tool not been much help at the 3 mechanics i have taken it too. no one knows how to fix atm unfortunately. engine replacement maybe? Or rebuild. Sent from my SM-G930F using Tapatalk

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Posted · Report post

Could be a faulty coil pack/spark plug. Pull the plugs put and see if you can find an oily one 

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Posted · Report post

replaced all of the above already. Sent from my SM-G930F using Tapatalk

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Posted · Report post

this car is going to bankrupt me lol Sent from my SM-G930F using Tapatalk

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Posted · Report post

Need more info really. Maybe upload a video so we can hear it. How is the idle? Does it get worse when it’s warmed up. Is it making any knocking noises?. Burning much oil /coolant. Is the engine light on? 

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Posted · Report post

Thanks a lot I will upload video tomorrow. going through 1 litre of oil per 6 weeks or so, no coolant issues or overheating oil temp at 96°Celsius when driving. burning oil smell b4 and during issues. white smoke at cold start and taking off quickly. misfiring in neutral and in gear, has had engine sludge mentioned by mechanic but have had flushed twice since. Issue has come and gone with new ecu, new fuel pump spark plugs, battery, o2 sensor coil pack all 6. I will up load video soon though. hope someone will have seen this issue b4 hard to find a mechanic with any experience with 370z issues. Sent from my SM-G930F using Tapatalk

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Posted · Report post

video 44287533e92caff952e10ef8b84e18a8.jpg Sent from my SM-G930F using Tapatalk

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just a few recent attempted fixes and the error code I am getting flashing after driving like this, code is the only one that logged at tuning shop. nissan said $300 to diagnose want to avoid that if possible.IMG%7Boption%7Dhttps://uploads.tapatalk-cdn.com/20180301/85215d39a39ad0b4494cf8bcf81fbe60.jpg] Sent from my SM-G930F using Tapatalk

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Posted · Report post

let me know if video plays its very telling. Sent from my SM-G930F using Tapatalk

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Posted · Report post

Video not working for me

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Posted · Report post

You don't say how many km's your doing in 6 weeks so can't tell if the oil consumption is high. If you think it is high then maybe look at your pcv valve, a faulty pcv can cause excessive oil consumption . It can also cause oil to get into the combustion chamber causing misfires and smoking. You can read codes with cheap devices you can buy yourself 

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Posted · Report post

low k' s 200 a week Sent from my SM-G930F using Tapatalk

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Posted · Report post

Nope. No video for me. Until late 2011, 370z's still suffered from timing chain oil gallery gasket failure . This manifests itself by showing low oil pressure when tested and a miss fire as the vvt doesn't work correctly due to the low oil pressure.however it doesn't usually cause oil loss as the oil runs back into the sump. My first port of call would be read the codes with a cheap code reader (I'm in victoria and would lend you mine) and next would be a compression test (I have a compression tester I'd lend out too) to rule out any major mechanical issues. Like I said it could be a $20 plastic pcv valve

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Thanks again. I will have my mechanic have another look at the code or new codes on Monday and ill suggest those possible issues. Crankshaft position sensor is the code I got a few weeks ago mentioned above. I have spent around 6k with this mechanic on these issues ill try get and get them to spend more time on it for free Monday. Sent from my SM-G930F using Tapatalk

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Posted · Report post

yeah I'm in Brisbane thanks for the offer on the tools. Sent from my SM-G930F using Tapatalk

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Posted · Report post

Thanks again. I will have my mechanic have another look at the code or new codes on Monday and ill suggest those possible issues. Crankshaft position sensor is the code I got a few weeks ago mentioned above. I have spent around 6k with this mechanic on these issues ill try get and get them to spend more time on it for free Monday. Sent from my SM-G930F using Tapatalk

sometimes you got to bite the bullet and take it to nissan

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