Need some help. I have a 2013 G37X automatic.

I got on the gas to pass a car last night and the car accelerated like normal. Once I got around the car I let off the gas, when I went to get on the gas again the car bogged down then took off. I was in shock not knowing what happened so I let off the gas, let the RPM's drop and tried it again. The RPM was slow to get to 2000 RPM then took off. I pulled into a parking lot and let the car sit for a min.

At this point the car is idling around between 500-1000 RPM. When I hit the gas the the car Boggs down but slowly accelerates to 2000 RPM. Once it hits 2000 RPM the car RPM advances normally. I tried this a couple of times and it never changed. I turned the car off and let it sit for 10-15 min. I then started the car back up and it did it again, a couple for times. I turned the car off again and checked my intakes for any obstructions there was not issues.

This time I stated the car up and it started fine, but when I push in the gas the car doesn't go past 1000 RPM. I shut it off and let it set for about 30 min, now when I start the car it starts normally but goes to 1000 RPM, then sputters our and dies.

ANY HELP WOULD BE GREAT!!!!!!

 

Check your MAF's, I bet their dirty.

 

Could also be a misfire situation with one or more coil packs experiencing intermittent failure.

 

just got the car towed home. I tried remapping the ECU, which was a no fix. Going to try and clean the airflow sensors.

Note: Now when I try to start the car it goes to 1k RPM for a few seconds then sputters our, I tired giving it gas as soon as I start the car, but it dies even quick than if I just let it idol.

 

Time for a tune up. Plugs clean TB clean mafs. New air filters. Oil change etc.

 

I just did all that about 6 months ago, the only thing I didn't was clean the MAF. so i'm hoping that's the issue.

 

here's a video of what she is doing now

 

No video here...

 

here's a link to the video
https://www.youtube.com/watch?v=75OQ...ature=youtu.be

Update: I cleaned the MAF and reset the ECU again. I tried restarting the car 10-15 times last night, and got the same result , car starts and dies. I then had to go get ready for work. About an hour later, this is about an hour and a half after I cleared me MAF, I came back to the car and tired to see what it would do (in frustration). I started the car twice and it died on me like it had been. On the third attempt the car started right up with a little fluctuation in the RMP between 800-1000 RPM, I then hit the gas and it revved right up. after each rev up the car would randomly either idol correctly or fluctuate about 200 RPM. It would also randomly have slight lag is RPM acceleration.

Im now starting to wonder if I need to either clean my MAF again or I have bad gas. Any thoughts?

 

It’s hard to tell, but it sounds like it’s running rough when it’s running at all. How full is your gas tank?

 

20 Gallons I just filled it up about 30 miles ago.


Update: I got up today to work on the car, now when I start the car it just idles really rough and eventually dies, if I try to give it gas it acts like it floods out. I wouldn't think its guy fuel pump since I can hear it priming and shutting off. Its just so random how this car wants to act. I would think that If I had an ignition problem the car would throw codes, but there are never any codes.

 

Just for good measure, check your oil pressure. See if you are below 14psi at idle and 44 psi at 2k rpm.

 

what's the best way to check and see what my oil pressure is?

 

Heres a guide. Myself a bought an oil pressure testing gauge and did this


If you dont have or want to get one, you could have a mehanic do it for you. Shouldnt cost much

 

By the way, Motorvate is awesome. He has many how to vids on your G, You should really check out his youtube channel. He is an asset to anyone new to these cars ( such as myself lol )