Q: Engine Misfire in cylinder 5

asked by on January 08, 2018

I have a 2005 Nissan 350Z 5AT. The car has 100,912 Miles on it. I currently have an error code of P0305. it tells me that there is a misfire in Cylinder 5. I have already replaced the spark plugs and the one coil on cylinder 5. the misfire is still there. Many people have told that they can smell gas when the car is running, some say that the smell comes from the exhaust. I replaced all in the intake gaskets in hope that there was some kind of leak.

Freeze Frame - P0305

Fuel System 1 Status: Closed Loop Fuel System 2 Status: Closed Loop Calculated LOAD Value: 32.94% Engine Coolant Temp :174.20 F Short Term Fuel Trim - Bank 1: 14.84% Long Term Fuel Trim - Bank 1: 0.00% Short Term Fuel Trim - Bank 2: 3.13% Long Term Fuel Trim - Bank 2: 0.00% Engine RPM: 700.00 RPM Vehicle Speed Sensor: 0.00 MPH Absolute Throttle Position: 4.31%

My car has 100912 miles.
My car has an automatic transmission.

It is possible that there could be an issue with the fuel injector or the compression on that cylinder. I would recommend having the compression tested on all the cylinders to ensure that the piston rings are functioning properly.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

When the slip indicator light comes on, The car shakes bad and I have to pull over turn it off and turn it back on.

The vehicle's shaking may be caused my improper signals going to the traction control system and in return the traction control system is trying to correct a problem based off of improper signals. This may happen to the anti-lock braking...

Will it damage my Honda Civic Hybrid 2005 engine to drive it with a bad lifter? 2005 Honda Civic Hybrid

Hi there - no, a tapping valve lifter won't cause direct damage per se, but will run less efficiently (on that cylinder) while clearance is excessive and tapping occurs. Since the lifters are adjustable, you would certainly want to have...

Temperature sensor

Hi There, It sounds like you may have a faulty coolant temperature sensor which may be providing a false reading to the temperature gauge. When the car is cold, it relies heavily on the engine coolant temperature sensor. If the...

Hear noise on driver's side wheel when turning right

The first clicking sound is likely coming from a faulty CV axle. This clicking sound is made by a faulty joint within the cv axle. I would first recommend having a suspension and brakes inspection performed by a qualified professional....

Serpentine belt

It is not advisable to drive your vehicle without the serpentine belt attached. Your vehicle has two serpentine belts listed. If the main belt is broken, the alternator and water pump will not be turning. You will lose all power...

Brake light comes on while driving uphill, especially with strong acceleration.

The warning light is activated by either low fluid level in the master cylinder or engagement of the E-brake. If the fluid level is not low and the E-brake is not engaged, there is a fault in the sensor or...

Brakes still going to floor

This may suggest your brake booster is failing. The brake booster is a mechanism that uses vacuum pressure to take the force being applied to the brake pedal and amplify it. If the booster is bad, then the full amount...

Blown engine

If you are saying the oil was never changed in 30k miles, then this would be the reason for the failure. A turbo engine needs normal oil changes about every 3k to 5k miles. The turbo gets extremely hot and...

Clutch sticks at first engagement & also at high RPMs

Hello. The problem you are experiencing with your 2005 Honda S2000 is likely due to a leaking or sticking slave cylinder. Slave cylinders commonly develop leaks over time and suck air into the hydraulic passages. In fact, I just replace...

Related articles

2012 Toyota Tacoma vs. 2012 Nissan Frontier: Which One Should I Buy?
The smaller truck category includes those vehicles for men (and women!) who just want to scoot around town but who are opposed to driving a small car and just prefer a truck. These relatively fuel-efficient vehicles offer little in the...
The Best Used Cars to Buy If You Like to Go Off-Roading
Your Your best bet for off-roading is a 4x4 SUV. Depending on the model that pleases you most, though, you might have to shop around a bit to find a good used one. That’s simply because off-roaders typically become very...
The Best Used Cars to Buy If You're an Uber or Lyft Driver
Are Are you thinking of becoming a driver for Uber or Lyft? That could be an exciting career change – you’ll get to meet a lot of interesting people, and if you love to drive, what better way to spend...