Hi,
That code indicates a multiple cylinder misfire. It isn't consistent or limited to one cylinder. That can be caused by a number of things. See the attached pic.
So where do we start. I would start by checking fuel pressure and check for an engine vacuum leak. Since it is multiple cylinder, it isn't going to be one spark plug or one fuel injector.
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Here is a link that explains how to check for a vacuum leak:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Here is a link that shows in general how to check fuel pressure:
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Here are the directions specific to your vehicle. The attached pics correlate with the directions.
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2010 Nissan-Datsun 370Z V6-3.7L (VQ37VHR)
Component Tests and General Diagnostics
Vehicle Powertrain Management Fuel Delivery and Air Induction Fuel Pump Fuel Pressure Testing and Inspection Component Tests and General Diagnostics
COMPONENT TESTS AND GENERAL DIAGNOSTICS
FUEL PRESSURE
Inspection
FUEL PRESSURE RELEASE
With CONSULT-III
1. Turn ignition switch ON.
2. Perform "FUEL PRESSURE RELEASE" in "WORK SUPPORT" mode with CONSULT-III.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel pressure.
5. Turn ignition switch OFF.
Without CONSULT-III
pic 1
1. Remove fuel pump fuse (1) located in IPDM E/R (2).
2. Start engine.
3. After engine stalls, crank it two or three times to release all fuel pressure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.
FUEL PRESSURE CHECK
CAUTION:
Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
NOTE:
- Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel pressure cannot be completely released because Z34 models do not have fuel return system.
- Use Fuel Pressure Gauge Kit (J-44321) to check fuel pressure.
1. Release fuel pressure to zero.
pic 2
2. Install the inline fuel quick disconnected fitting (A) between fuel damper (1) and injector tube.
3. Connect the fuel pressure test gauge (quick connector adapter hose) (B) to the inline fuel quick disconnected fitting.
4. Turn ignition switch ON and check for fuel leakage.
5. Start engine and check for fuel leakage.
6. Read the indication of fuel pressure gauge.
At idling : Approximately 350 kPa (3.57 kg/cm2, 51 psi)
7. If result is unsatisfactory, check fuel hoses and fuel tubes for clogging.
If OK, Replace "fuel filter and fuel pump assembly".
If NG, Repair or replace.
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Let me know what you find.
Joe
Images (Click to make bigger)
Thursday, July 16th, 2020 AT 4:54 PM