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Little maintenance done today, swapped out the spark plugs with almost 105,000 miles on them with some brand new oem denso, also discovered that both valve cover gaskets around the spark plug holes are leaking so i guess time to swap those out.... also i don't think i mentioned it but i had a poly transmission mount installed a couple weeks back.... what a difference in driving feel!
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https://www.smogtips.com/smog-questi...0z-Drive-Cycle |
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So I'm going back in for a 3rd try and this time I'm going to have a nice, calm, chakra-aligning conversation with the 'inspector' - Chicago-style. |
POS threw some code so I threw it into the garage for winter and will look at it next year.
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I drove it to work :driving:
Hope it doesn't rain because it doesn't have any windshield wipers installed right now :ugh: Also spent some time the past few days trying to figure out a noise. Fairly certain it is the exhaust making the noise. Hope to data log a little bit this week to send to Seb for a retune :tup: |
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It happens around 2.5K RPMs. Can be engine braking in gear. Can be stopped in neutral and give it the right amount of throttle to make the noise. It happens briefly during gear shifts, too. Would be annoying except for racecar! Plus during the gear shifts it kinda sounds like a blowoff valve for my poser turbo :icon17: |
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That sounds like good old test pipe hiss lol |
Welp, Smoke test saw leaking out of the passenger side exhaust, something is up with that side of the valve-train or cylinders. I did notice that I've always had a light oil haze on one side vs the other in the past when cleaning the lower manifold so that may not be the leaning issue (I'm never burning a ton of oil between changes). He's gonna check the fuel pressure to see if that may be it.
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Flacid, buy a new Z and sell me your axle-back straight pipes so I can test it out lol |
Talked to the shop today. It sounds like I just need a retune. Fuel pressure was tested at 55 psi, so Kevin is gonna swap out my motor mounts and I'll pick it up sometime next week.
I'm just glad nothing catastrophic is wrong with the car. I'll probably throw some new injectors in and get it retuned. |
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Learned how to make my own carbon fiber parts. not bad for a first timer
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Looks like something Zoren would try to use. He's the only one who'd say quack.
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Got the car back from the shop yesterday. New motor mounts feel good but im still trying to figure out what's up with my car. I'm probably going to pull the injectors and get them bench tested, and at the same time, I'll pull the spark plugs and check them. I changed them out at around 80k i think?
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New plan: after speaking with my tuner, we're gonna have some fun and get some higher capacity injectors *evil laugh*
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I think it was worth the hassle. Also took her for a ride. haven't driven it for weeks
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Pulled my fuel injectors today and tested them. Found two faulty injectors in cylinders two and four. I will be ordering a brand new set of fuel injectors for build. Enjoying working on my Z!
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I'm going to still test my stock injectors whenever I put the new higher capacity ones in. I'm curious to know what kind of shape they are in. |
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pulsing noise when diagnosed. O rings on injectors in cylinders two,four,and five looked bad. In my experience I found using Chevron fuel injector cleaner works at keeping your fuel injectors clean and fuel spray pattern correct. I recommend using fuel injector cleaner and fuel system cleaner it will help. The stock fuel injectors are nice to have as spares on hand. I got these fuel injectors yesterday!! Will be using them for my rebuild. |
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It's that time again
Put the winter tires/wheels on. :icon08:
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Handed the Nismo's keys to my son...
And, end up in a music video 🤔 |
T-180
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BUSTED! :rofl2: |
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