Looking for Annapolis Area G37 drivers
#1
Registered Member
Thread Starter
Looking for Annapolis Area G37 drivers
I am still convinced that my 2012 G37xS is not running correctly and lacks POWER for some reason. Any people on this board in the Annapolis Area that would be willing to take me on a short test drive so I can compare ?
Would greatly appreciate it.
I am doing a cylinder compression test on Wednesday but other than that I have no idea why my G37 feels slower than is should be. I remember test driving G37X's before my purchase and they all felt much quicker.
thanks for anyone willing to take me on a quick test drive in their car.
Tom
Would greatly appreciate it.
I am doing a cylinder compression test on Wednesday but other than that I have no idea why my G37 feels slower than is should be. I remember test driving G37X's before my purchase and they all felt much quicker.
thanks for anyone willing to take me on a quick test drive in their car.
Tom
#5
Registered Member
Thread Starter
I am cleaning the tb today and also doing a compression check. 45,000 miles on the car. I will reset the ECU too..
I work in Annapolis and live in Baltimore County. But would still love to see if your car feels and pulls much better...
thanks,
Tom
#7
Registered Member
Thread Starter
Had some free time today and cleaned the throttle bodies, checked compression on the cylinders and reset the computer. The throttle bodies were fairly clean.
The compression in all 6 cylinders was 185psi.
Will see tomorrow if the car runs any better.
The compression in all 6 cylinders was 185psi.
Will see tomorrow if the car runs any better.
Last edited by si_driver; 05-21-2015 at 08:29 AM.
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#8
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Thread Starter
Car drives a little better. Now I am thinking that the transmission is the problem. It feels to me like it is always one gear to high. ..
#10
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Thread Starter
You think the bigger & heavier 19" wheels of the xS model could cause the slower times. Usually from a standstill the acceleration isn't' too bad, it is terrible from around 20-30mph. It feels like transmission is down shifting a gear that is one too high.
#12
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Thread Starter
I do not know if the trans software was ever updated. I have the autoengenuity hardware and software on my laptop & will see if it is capable of reading software version from the trans.
#13
Regarding software, read thru this 160+ page thread if you dare, but I don't believe a 2012 sedan has any transmission software TSB's. Earlier cars, yes.
https://www.myg37.com/forums/g37-sed...reprogram.html
Your xS should (I believe) have 18's, not sure if 19 inches was a typo? Either way, seems immaterial to your downshifting at 20-30MPH scenario. Hope you get it sorted.
https://www.myg37.com/forums/g37-sed...reprogram.html
Your xS should (I believe) have 18's, not sure if 19 inches was a typo? Either way, seems immaterial to your downshifting at 20-30MPH scenario. Hope you get it sorted.
#14
Registered Member
OP,
just to throw it out there...have the air filters been looked at / changed? also the MAF sensors may need to be cleaned...not sure if you are experiencing any idle issues...
just some thoughts to hopefully get your car back in shape
let us know the progress...
FWIW, I called OC Infiniti to check my VIN (2012 G37X Sedan) for any TSB on the transmission updates, they confirmed that the 2012 wasn't involved...
just to throw it out there...have the air filters been looked at / changed? also the MAF sensors may need to be cleaned...not sure if you are experiencing any idle issues...
just some thoughts to hopefully get your car back in shape
let us know the progress...
FWIW, I called OC Infiniti to check my VIN (2012 G37X Sedan) for any TSB on the transmission updates, they confirmed that the 2012 wasn't involved...
#15
Registered Member
Thread Starter
Air filters are clean .. no idle issues.
Car is now running much better after I advanced the timing by +2 deg.
But I still think that it lacks the power from a dead stop until the about 10-15mph. Also when cruising at 20-35mph and trying to accelerate fast, it seems to be selection a gear to high and the acceleration is terrible.
Car is now running much better after I advanced the timing by +2 deg.
But I still think that it lacks the power from a dead stop until the about 10-15mph. Also when cruising at 20-35mph and trying to accelerate fast, it seems to be selection a gear to high and the acceleration is terrible.
Last edited by si_driver; 05-22-2015 at 09:25 PM.