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Maintenance & Repair 350Z up keep and diagnosing/fixing problems

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Old 10-11-2017, 03:40 PM   #1
Michelles350z
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Default 350Z not accelerating

My 6 speed 350Z will not accelerate. The RPMs go fine, but the car does not move. I have changed the throttle body and the pedal sensor with no loci.
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Old 10-11-2017, 03:48 PM   #2
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My 6 speed 350Z will not accelerate. The RPMs go fine, but the car does not move. I have changed the throttle body and the pedal sensor with no loci.
Did the DTCs suggest you change the TB and pedal sensor? And why would you change those if "RPMs go fine"?

What are the codes showing?

Clutch engaging?

Clutch pedal pressure?

Trans in gear?

Driveshaft wasn't stolen was it? Hey, it's carbon fiber composite!

Parking brake off?

Is the engine running?



OK, sorta tongue-in-cheek there... but only point is that there's not enough info in your post to make any suggestions.
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Old 10-11-2017, 03:57 PM   #3
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Sorry, but you're right. New to the forum!

The car very slowly began to rev higher and higher with less acceleration. That is when the "service engine soon" came on and I got the P0507 code and changed the throttle body. I even changed out the accelerator pedal sensor. I reset / relearned the throttle body, etc. Car cranks well and idles around 800. Clutch engages and has good pressure. I put it in 1st gear, car revs high but goes no where.

Clutch fluid is good, with no apparent leaks. I am thinking may be needs new clutch?
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Old 10-11-2017, 04:07 PM   #4
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Did this whole problem happen suddenly or gradually?
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Old 10-11-2017, 05:54 PM   #5
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Did this whole problem happen suddenly or gradually?
Gradually. Got less and less power
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Old 10-12-2017, 03:19 AM   #6
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get going in 4th gear at about 30 mph, then floor it. do the rpms jump up?
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Old 10-12-2017, 04:43 AM   #7
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Gradually. Got less and less power


Ok.. Sounds like a typical worn-out clutch.
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Old 10-12-2017, 04:44 AM   #8
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get going in 4th gear at about 30 mph, then floor it. do the rpms jump up?


The car won't move.
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Old 10-12-2017, 05:04 AM   #9
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The car won't move.
doh missed that part... have it towed to shop and be done with guessing
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Old 10-12-2017, 06:26 AM   #10
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doh missed that part... have it towed to shop and be done with guessing


I understand... Here.


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Old 10-12-2017, 06:27 AM   #11
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That's what I think too. Going to get that changed out ASAP and back to driving!
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Old 10-12-2017, 06:37 AM   #12
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I understand... Here.


better have kaluha in it
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Old 10-12-2017, 07:38 AM   #13
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That's what I think too. Going to get that changed out ASAP and back to driving!


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Old 10-12-2017, 07:48 AM   #14
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better have kaluha in it


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Old 10-12-2017, 07:58 AM   #15
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What year is the car?

Nissan specific DTC P0507 does point at idle controls (throttle control or actuator) but somehow I think that's coincidental and may not be the specific cause as the car sounds like it's running OK but no movement, pointing to clutch actuation.

When you let out the clutch pedal, does the engine change behavior (drop rpms or anything?)

I ask about the year because the '07/08 HRs with the concentric slave can exhibit "no hydraulic pressure" symptoms without visible leakage.

But I agree, this is all speculation and it might be time to take it in for a pro eval.
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Old 10-12-2017, 08:19 AM   #16
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Since they said throttle ''body'', singular, I'm guessing it's pre '07.
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Old 10-12-2017, 08:21 AM   #17
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Since they said throttle ''body'', singular, I'm guessing it's pre '07.
Agreed. Just wanted to offer concurrence on your other points.
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Old 10-12-2017, 08:43 AM   #18
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Agreed. Just wanted to offer concurrence on your other points.


I admit. My personality is a little excessive today.. My little sis is getting married.. I DON'T LIKE BEING IN WEDDINGS.
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Old 10-12-2017, 08:54 AM   #19
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pics of said little sis... for research of course
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Old 10-12-2017, 08:55 AM   #20
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I admit. My personality is a little excessive today.. My little sis is getting married.. I DON'T LIKE BEING IN WEDDINGS.
There was nothing excessive at all.

Congrats to yer sis. Tux shot! Tux shot!!

Or like mine..... cargo pants and a Hawaiian shirt!! Hahahahaaaaaa...... (I wish.... vow renewals will definitely be that! Underneath a full body suit and winter parka at the top of Haleakala. Snow in a Maui summer!?? Up there, hells yes!)
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