Help me diagnose this problem: I can't rev past 3500 RPM intermittently (AK370Z)

ZBro16

I had something similar like that happen on my Altima Coupe 3.5 6MT, but when it happened it was a weird stall that I had in a parking lot due to some moron in front of me (and a brain fart on my part). When I stalled, I restarted kinda quickly as traffic started moving again and when I clutched in, the VDC and SLIP lights came on, and I couldn't rev past 2500 rpm (it would bounce fairly violently at that RPM).

I pulled over into the next parking lot, turned off the car, waited 30 secs, started it up and the lights were gone and I never had it happen again until I traded the car (20,000 or so additional miles over a year's time.)

Your issue is peculiar as you have no trouble codes or anything. The crank position sensor is likely not it as it should throw a code.

My instinct say it's something to do with the oil temp sensor as, to my knowledge, it is the only thing that can throw a car into a "limp" mode without throwing a trouble code. A Nissan CONSULTIII tool should be able to pull the information on the temp sensor as I believe it is logged when you ping the 260 degree limit, but will not throw a code.

I would take it in and at least have them look at it. You paid for the warranty.

DOOMMONKEY777

AK370 i think it is because of you're sprint driving, the the temp skyrocket instantly on this engine, i have noticed it on my z. Its when you push it hard and lets say stop n go, not on highway where air is not cooling off the engine constantly it makes soooo much heat at idle and full throttle its horrible, i had to instal a 48row oil cooler in order to avoid this issue. I know that it also might be the sensor or other equip but from exp i think that our engines would make a great oven for the house.

Also i removed my engine cover (not the best idea) but the temps went downnnnnn like 2oo wile racing or sprinting. It stays 220 constantly wile just drifting in parking lots, airports, not streets its effin dangerous.

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Red__Zed

Mine had all sorts of issues with wiring melting and it did not throw a code, so I'd still encourage Nissan to take a look, especially given the positioning of the sensor.

It would be helpful to have a way to datalog. I know bad MAF readings will cause a similar behavior, but would also expect a code.