Check Engine Light

TreeSemdyZee · 01-17-2017, 03:58 PM

Check you oil level. If it is high, this can cause issues.

I had this happen to my car last year and it sent the idle even higher than yours. If I stopped at the store after driving for awhile, then got back in to drive, the engine would idle extremely roughly.

Because I had stupidly overfilled the car, the oil foamed and wreaked major havoc.
I had to completely drain the oil, then refill.

Once I did that, everything was fine.

elhombre · 01-17-2017, 04:34 PM

Quote:

Originally Posted by TreeSemdyZee

Check you oil level. If it is high, this can cause issues.

I had this happen to my car last year and it sent the idle even higher than yours. If I stopped at the store after driving for awhile, then got back in to drive, the engine would idle extremely roughly.

Because I had stupidly overfilled the car, the oil foamed and wreaked major havoc.
I had to completely drain the oil, then refill.

Once I did that, everything was fine.

Thats crazy. haha

You just made me check the oil. It is luckily (or unluckily) right in-between the markers.

Back to the drawing board.

Wilson2608 · 01-18-2017, 02:12 PM

Another good place to start is to figure out if the car is running rich or lean when throwing the misfire codes. This can elimate some possisbilites depending on rich or lean. Grab a scan tool and look at the short term fuel trims. (Looks up a video on what STFT if you don't already know). Good luck man!

mambaZ34 · 01-19-2017, 02:05 PM

I have the exact same thing happening to my car. I had it checked out by the dealer before I reset the code and everything checked out fine. My exhaust had come loose out of the left hanger but that was an easy fix. Fast forward 3 weeks and I started the car for the first time in a couple of days and the code is back on. I am convinced it might be an exhaust leak or a bad sensor. I tested for vacuum leaks and checks the MAF sensors as well and they all checked out. Maybe a bad O2 sensor?

01-17-2017, 03:58 PM	#1 (permalink)
TreeSemdyZee Premium Member Join Date: Dec 2009 Location: Kentuck-IANA Age: 60 Posts: 4,886 Drives: '09 370 & ‘14 Juke Rep Power: 27409	Check you oil level. If it is high, this can cause issues. I had this happen to my car last year and it sent the idle even higher than yours. If I stopped at the store after driving for awhile, then got back in to drive, the engine would idle extremely roughly. Because I had stupidly overfilled the car, the oil foamed and wreaked major havoc. I had to completely drain the oil, then refill. Once I did that, everything was fine. elhombre likes this. __________________ Borla S-Type \| Motordyne \| Z1 (lots) \| South Bend \| K&N \| Nismo/Nismo S-Tune \| Eibach \| Aerojacket \| Fujimara \| Spl \| ZSpeed Performance \| Kenwood-Infinity-Sound Ordnance \| Whiteline \| Ecutek \| Hotchkis \| Clazzio \| VQ Vortex \|Morimoto XB \|Dynosty Tune 329.64hp 265.73 ft/lb

01-18-2017, 02:12 PM	#3 (permalink)
Wilson2608 Enthusiast Member Join Date: Dec 2014 Location: Nashville Posts: 301 Drives: Nissan 370Z Sport Rep Power: 11	Another good place to start is to figure out if the car is running rich or lean when throwing the misfire codes. This can elimate some possisbilites depending on rich or lean. Grab a scan tool and look at the short term fuel trims. (Looks up a video on what STFT if you don't already know). Good luck man! elhombre likes this. __________________ Stillen G3, z1 Intake Manifold, Stillen Headers, Z1 HFC's, Stillen Catback. 330whp 267 ft- lbs tuned at Z1 motorsports.

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01-19-2017, 02:05 PM	#4 (permalink)
mambaZ34 Base Member Join Date: Jun 2016 Location: Charlotte NC Posts: 6 Drives: 09 370z G41 M6 Rep Power: 9	I have the exact same thing happening to my car. I had it checked out by the dealer before I reset the code and everything checked out fine. My exhaust had come loose out of the left hanger but that was an easy fix. Fast forward 3 weeks and I started the car for the first time in a couple of days and the code is back on. I am convinced it might be an exhaust leak or a bad sensor. I tested for vacuum leaks and checks the MAF sensors as well and they all checked out. Maybe a bad O2 sensor?