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

DOOMMONKEY777 · 01-24-2017, 01:19 PM

This is a shaft sensor problem, it's dirty, it's moving around, connection loose or bad, or faulty, which one I dunno, take em off one by one and inspect it under good light to see if anything broke has a crack in it or dirty, also check each pin on the connection wire pull on it see if it comes out, reconnect and check all the connections for cracks or looseness. Look inside the hole where the sensor goes and check to make sure you see metal is clean that it's reading. Also make sure everything is tight.

Check the TB as well
GL

birdman71 · 01-25-2017, 06:39 PM

Krazzzz · 05-11-2019, 08:36 AM

Quote:

Originally Posted by birdman71

Not so fast my friend!

I have the same issue now. Going to start with mass airflow sensors and work my way up to camshaft position sensors.

Very very annoying. Just got her the way I want and now shes all tempermental.

BettyZ · 05-19-2019, 04:56 PM

Quote:

Originally Posted by Krazzzz

Not so fast my friend!

I have the same issue now. Going to start with mass airflow sensors and work my way up to camshaft position sensors.

Very very annoying. Just got her the way I want and now shes all tempermental.

Could be one of the fuses for the brake lights.

Gungrave · 07-28-2019, 07:19 PM

I’m having the same problem with mine. I cleaned my throttle bodies and replaced both MAF and the Crankshaft Position Sensor. The car still won’t start. It’ll try to crank but won’t actually fire up. I have no idea what the problem is. Any of you guys have any thoughts? My next step is to take it to Nissan but I know they’ll come back with some stupid price.

01-24-2017, 01:19 PM	#1 (permalink)
DOOMMONKEY777 A True Z Fanatic Join Date: Sep 2010 Location: Crooklyn Posts: 1,014 Drives: 370Z 6psd-sport-pkg Rep Power: 22	This is a shaft sensor problem, it's dirty, it's moving around, connection loose or bad, or faulty, which one I dunno, take em off one by one and inspect it under good light to see if anything broke has a crack in it or dirty, also check each pin on the connection wire pull on it see if it comes out, reconnect and check all the connections for cracks or looseness. Look inside the hole where the sensor goes and check to make sure you see metal is clean that it's reading. Also make sure everything is tight. Check the TB as well GL __________________ Kids don't do Drugs, Drugs are bad, so let the professional druggies do Drugs for you. 537whp/496lb/tq@8-9PSI 93 octane Last edited by DOOMMONKEY777; 01-24-2017 at 01:23 PM.

01-25-2017, 06:39 PM	#2 (permalink)
birdman71 A True Z Fanatic Join Date: Apr 2015 Location: Los Angeles, CA Posts: 1,579 Drives: People Crazy! Rep Power: 42	wideglideleon likes this. __________________ *Birdman's Build:* Powerhouse Amuse/ Nismo/ Eibach/ ACT/ Tommy Kaira/ Avant Garde/ Fast Intentions/ Project Kics/ Fly 1 Motorsports/ EVO-R/ Z1 Motorsports/ Weber Sports/ Zoom/ Zele Japan

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07-28-2019, 07:19 PM	#5 (permalink)
Gungrave Base Member Join Date: Jul 2010 Location: Brandon, FL Posts: 130 Drives: 2010 370Z Rep Power: 1166	I’m having the same problem with mine. I cleaned my throttle bodies and replaced both MAF and the Crankshaft Position Sensor. The car still won’t start. It’ll try to crank but won’t actually fire up. I have no idea what the problem is. Any of you guys have any thoughts? My next step is to take it to Nissan but I know they’ll come back with some stupid price.