AS the subject says, I just went to lunch in my 05' G35 coupe 6MT, I went about a mile to the red light and turned right. AS I turned, the right rear wheel spun on some wet leaves on the street, the SLIP light flashed and then the car studdered A LOT and there was no gas peddle response and it died.
I restarted it and it spuddered and died multiple times before it finally would run again on it's own but VERY rough idle and it is very slow to respond to the gas pedal. I can get it to rev all the way up to 7k without issue once you get past approximately 4k rpms. It is still running like this and I have to drive it home, hopefully.
No codes or lights. I do smell something faint but I'm not sure if it's a burning smell or just it loading up and smelling. I know the difference between the two smells but the smell is so faint I cannot smell enough to distinguish.

Any Ideas?

The body has 213k miles on it. The motor has 80k miles on it. I think it might be the fuel system (i.e. fuel filter or fuel pump).
I have to leave for a 40 mile drive home in 3 hours.

 

Are the VDC or CEL lights on as well? It sounds like bad cam sensor, but could be alot of things. Try resetting the ECU to see if it goes away.

 

No lights on at all, The SLIP literally came on because the wheel slipped.
It was strange, it almost felt like it was caused by the traction control because as soon as it slipped the acceleration died as it normally does when it slips and then it didn't want to recover. Like it cut the fuel supply and then couldn't regain it.

 

SLIP just means a difference in wheel speed was detected and car shuts off fuel injectors for a second and applies brakes to regain control. Even when turning off VDC on the G35, it never actually turns off. It is usually cleared by just turning car off and back on.

The rough idle still sounds to me like a bad cam sensor, but you should be getting a SEL. Try resetting the ECU and see if problem persists.

 

ECU reset

-turned ign. to on & wait 3 seconds
-press and release gas pedal 5 times within 5 secs.
-wait 7 secs then press and hold gas pedal for 10 secs
-if you did it right, the check engine light starts to blink to let you know you are in service mode
-release gas pedal
-press and hold gas pedal for 10 secs to reset ecu memory
-turn key to off, then start car

 

Fuel pump or fuel filter problem not likely unless you were having consistant starting problems requiring car to crank for several seconds.

Unusual smell could be a catalytic converter problem which maybe caused by engine running rich or there clogged. Catalytic converters are designed to last life of engine 275K-300K miles. If engine was not maintained it will shorten life of converters.

If resetting the ECM does not resolve issue try cleaning MAF sensor.

 

I haven't had any reliability issue with it ever. It's always started up and ran decent. I have noticed that I think the knock sensor and cable are bad cause it pings, but I am waiting on the sensor in the mail.

Anyways, I just went and tried to reset the ECU with the above procedure. I tried it about 8 times if not more and could not get the CEL to blink. I tried counting many different ways to space out the seconds but to no avail.

I started it before I tried the reset procedure and it already seem to be running a little better but still has a rough idle.

 

It doesn't smell like fuel, if anything it smells like a burn smell but very faint smell

 

Make sure you turn the key all the way to ON, but don't actually start the car. Just keep trying, it takes good timing to get it.

Most important, until the problem is gone, DO NOT DRIVE IT HOME. What ever problem it is, will only get worse if you are driving around on it.

 

This one that was posted on Youtube sounds exactly like mine. They are saying fuel pressure regulator but the guy hasn't said for sure

Edit:Here is mine, you can't hear it as well as the guys video above but mine is acting just like his.

 

^^ He has the SEL on, you said you do not.

Reset the ECU and let us know if it clears.

 

He does have a CEL, I don't but the idle is exactly the same

 

the first video isnt his vehicle

 

I read this in another thread

Does anyone think this could do it. I already suspect that it's bad and have ordered the cable and the sensor. I have the cable but the sensor is still in transit.
Do you think this is it?


And then I see this too, this is entirely possible with 213k miles on the cats. Might be a good reason to get a set of Fast intentions Cats.
https://g35driver.com/forums/engine-...-stalling.html

 

Think you misunderstood the premise of my statement.

Your vehicle has rough idle which means its not burning fuel efficiently. When engine is not burning fuel correctly (IE Rich) it overloads the catalytic converters and may cause a sulfur smell. It may not necessarily have a fuel smell to it.

If catalytic converters are clogged it restricts exhaust gas flow,burnt fuel from combustion will back up into cylinders leading to fouled plugs and rough idle.

Mileage of vehicle, condition of converters is questionable.

O2 sensors may not accurately detect converter flow

Since you have no check engine light just trying to look at symptons that are not generally detected by OBD II engine management.