Gas Pedal Delay

m4a1mustang · 06-23-2010, 05:56 AM

Its not a tip in issue, though. Like I said before, initial response is there. It starts to pick up, then it faqlls on its face and throws you forward (because you were bracing for acceleration). The engine tries to wind up but there is no power... then 3-4 seconds later it takes off rather violently. It almost feels like it could be a problem with VVEL, where it is stuck in a limp mode then instantly switches over to full power.

ChrisSlicks · 06-23-2010, 07:27 AM

Quote:

Originally Posted by m4a1mustang

Its not a tip in issue, though. Like I said before, initial response is there. It starts to pick up, then it faqlls on its face and throws you forward (because you were bracing for acceleration). The engine tries to wind up but there is no power... then 3-4 seconds later it takes off rather violently. It almost feels like it could be a problem with VVEL, where it is stuck in a limp mode then instantly switches over to full power.

Hmm, that really doesn't sound good at all. Almost sounds like a fuel cut, but the question would be what is the cause of the cut? Could be VVEL, starvation or something else. I'm discounting VDC because you said it has happened with it switched off.

m4a1mustang · 06-23-2010, 08:00 AM

Quote:

Originally Posted by ChrisSlicks

Hmm, that really doesn't sound good at all. Almost sounds like a fuel cut, but the question would be what is the cause of the cut? Could be VVEL, starvation or something else. I'm discounting VDC because you said it has happened with it switched off.

The thing is, it even happens below full throttle as well. Case in point this morning... making a right turn from a stop sign onto a slow road, I eased out of the clutch and gave it probably 25% throttle at ~1500 rpm to briskly accelerate and again... nothing... then a surge of power after a few seconds of absolutely nothing.

I don't know if it's just me being over sensitive to the serious lack of torque in the 370Z, or if something may actually be wrong. I need to get the car on a dyno and probably see if I can drive another Z to compare the dynamics... Not quite sure what the hell is going on.

Above 4k RPM, though, the car feels like a champ.

IcedZ · 06-23-2010, 09:07 AM

When I put the car in neutral and hood up with stereo, A/C off (so I can listen), I press the pedal down and I can hear a "woosh" of air being sucked into the intake, but no response for a couple of seconds. Again, I would like to point out that this is occurring only at temps ABOVE 220F.

dlmartin81 · 06-23-2010, 07:55 AM

Quote:

Originally Posted by m4a1mustang

Its not a tip in issue, though. Like I said before, initial response is there. It starts to pick up, then it faqlls on its face and throws you forward (because you were bracing for acceleration). The engine tries to wind up but there is no power... then 3-4 seconds later it takes off rather violently. It almost feels like it could be a problem with VVEL, where it is stuck in a limp mode then instantly switches over to full power.

Once again, you described my symptoms exactly.

06-23-2010, 05:56 AM	#1 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	Its not a tip in issue, though. Like I said before, initial response is there. It starts to pick up, then it faqlls on its face and throws you forward (because you were bracing for acceleration). The engine tries to wind up but there is no power... then 3-4 seconds later it takes off rather violently. It almost feels like it could be a problem with VVEL, where it is stuck in a limp mode then instantly switches over to full power. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
7AT rev delay?	Vegitto-kun	Engine & Drivetrain	16	05-04-2010 05:17 PM
2 things delay in a shift and a sound 7at	jtown82	Engine & Drivetrain	19	04-03-2010 01:30 AM
Headlight delay	Jack370Z	Nissan 370Z General Discussions	7	10-30-2009 03:02 PM
A7 Upshift Delay?	hey32g	Nissan 370Z General Discussions	15	10-12-2009 11:20 AM
Automatic Downshift Delay	drdre8424	Nissan 370Z General Discussions	2	07-25-2009 10:56 PM

06-23-2010, 09:07 AM	#4 (permalink)
IcedZ Base Member Join Date: Feb 2009 Location: Gainesville, FL Posts: 194 Drives: 09 370 Yellow, 6MT Rep Power: 17	When I put the car in neutral and hood up with stereo, A/C off (so I can listen), I press the pedal down and I can hear a "woosh" of air being sucked into the intake, but no response for a couple of seconds. Again, I would like to point out that this is occurring only at temps ABOVE 220F.