Throttle Lag? 6MT

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Apr 19, 2008 | 11:34 AM

#16

hg35x

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Joined: Mar 2008

Posts: 147

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From: Minnesota

I had the same throttle lag problem until I had my throttle PEDAL position sensor replaced. It had an error code of P2135 which is usually the throttle body/throttle position sensor, but they replace the throttle pedal position sensor (drive by wire?) and it fixed it - complete lever assembly - # 18002-am81d - $147.98 is what mine cost (but under warranty). 2004 G35X
Much better throttle response now.

Apr 19, 2008 | 12:43 PM

#17

Deezflip

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iTrader: (2)

Joined: Jan 2007

Posts: 2,001

Likes: 20

From: Baltimore, MD

Quote:

Originally Posted by G35Law

I feel something similar in mine as well- the drive by wire is surely the issue.

I wonder if the Accelerator Pedal Released Position Learning has to do with anything?
or the Throttle Valve Closed Position Learning?
or even the Throttle Position Learning?

Apparently, these things can be re-calibrated if anything screws up and or any work/modifications has been done dealing with these areas.

procedures for calibration is on the last page...
http://motordyneengineering.com/manual.pdf

I'm giving the accelerator pedal released position a try since i have lag myself.

Feb 2, 2020 | 04:29 PM

#18

Patrick Ba

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Joined: Feb 2020

Posts: 1

Likes: 0

G35XS 2008 Sedan 5AT 140k miles

Have that same lag issue with 5at HR

Quote:

Originally Posted by B L U E S L A T E

Do you have the turbo whistlers installed on your mufflers by any chance? It's probably just the turbo lag.

I'm sorry, I couldn't resist.

In all seriousness, I have the lag, and it's coming from my HFC. When I am cruising around in a lower speed (30~40MPH) and decide to go WOT, my car hesitates for about half a second. I am not sure if it is the same symptom, but it seems like a similar problem? BTW, I have a 5AT.

i have that problem also with my 5At when i cruise around 30-40mph and i blip or kick down it hesitates like anti lag type of thing for a second... only does it on auto mode, not in DS or paddle mode. Does anybody have any idea on the source of the lag? I have TP and full custom exhaust with Drop-in filters, but it used to do it before i install any of those, somewhat got worse maybe with the mods..