I have a 2003 Infiniti G35 coupe the other day while driving it was running kind of sluggish so I pushed the gas pedal as soon as it went over 4000 RPMs the car shut off came back on 3 seconds later with the check engine light on I pulled over turned it off when I turn the key back on it was hard to start but then it finally started a few times the VDC slip light was on but now they're off car still starting and driving but I have a loss of horsepower I took it to O'Reilly's and it it says suggested Parts knock sensor and cam shaft sensor it's throwing like four codes out of nowhere if anyone has any input that could help that would be great also throwing crankshaft sensor

 

Replace the crank sensor, make sure to only use Hitachi or OEM Genuine Nissan. These cars don't play nice with aftermarket sensors.

The knock sensor is probably the sub harness. You can buy just the sub harness online and replace it.

P0335 is the crank position sensor, not the cam sensors.

EDIT: What other codes did it throw?

 

So I shouldn't use import direct oe replacement parts

 

It only though p0335&p0327 it through the same codes twice so only those 2.

 

I was just worried that I might have stretched the timing or something but there's no pinging there's no clanking there's nothing it just runs A little sluggish

 

It's a timing chain, you didn't stretch it. Most I've ever seen is 2 degrees over on a motor that was almost 300k miles. ECM pulled timing due to knock almost consistently and it actually still ran pretty well.

Sounds like you had a crank sensor **** the bed. This also explains the stalling problem.

The knock sensor is going to prevent your cam advance though so it's going to feel gutless until you get that fixed. Some folks are able to replace the knock sensor sub harness without removing the plenum but it's like playing a game of Operation. Since the plenum gaskets are all reusable I recommend just pulling the upper/lower plenum and the lower intake manifold. You can actually leave the lower in place if you want since it's a LOT easier to access the sub harness with the upper removed.

Keep in mind you will need to recalibrate the throttle body anytime you unplug the harness for it, I also recommend doing the idle air recalibration as well as checking for any loose fittings on the PCV hoses while it's all apart. Easy stuff, steps are in the FSM section EC - Engine Controls under "basic service procedures".

If you don't already have a copy of the factory service manual downloaded then you can get it for free from NICOclub. One of the great things about owning a Nissan/Infiniti is the ready access to the FSM via NICO.

https://www.nicoclub.com/infiniti-service-manuals

As for the sensor, unless you're buying an OEM Nissan part from the dealership, or you're buying a Hitachi sensor, you will have problems and it probably won't work right. Just pulling numbers from my butt, but it's only about 10% of the time an aftermarket sensor works at all, and they usually only work for less than 12 months before there's problems again. Hitachi or Nissan sensors will last 80k+ miles.

Hitachi was the manufacturer for the OEM part. Nissan then took the Hitachi sensors and did their own quality assurance on them to weed out the low-performers. I personally just get the Hitachi sensors since they're significantly cheaper.

 

So you don't think that the crankshaft sensor caused the knock sensor to show up on the code reader

 

I ordered a Hitachi crankshaft sensor I will most likely take it to a shop for the knock sensor to be done can you send me the parts I need to buy for harness an sensor or can I just buy the knock sensor an harness from o reilys

 

 

I have a 2006 G35 sedan and so far I changed the catalytic converters,A/T FR/B solenoid,Transmission Temperature sensor, fresh transmission fluid and filter, MAF , APPS ( whole assembly changed), new battery, and new brake pads, plus fresh oil change and filter.

My car symptoms are slip & vdc lights are on at the same time as the check engine light, late gear shifts, hesitant to accelerate from complete stop, RPMs are hesitant when pedal is fully depressed (very sluggish rev ups), reduced power, delayed response when stepping on gas pedal, the RPMs struggles to get to 2000RPMs.

Ive done the idle relearn procedure many times but it's not sticking. Im lost , HELP!

CODES: P0710 & C1131 !

also received a P0507, P2101, P2128, P2138, P0223, P0123, P0710 , but all parts was replaced as of today Monday, July 25. 2022.

 

Try to change your camshaft sensors there should be two of them