Poor acceleration?

General discussion forum for J30 and M30 owners!
hotwater
Posts: 1
Joined: Tue Oct 13, 2009 3:26 am
Car: 1997 1/2 J30T

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A year ago, ,my wife complained that the car could not get out of its' shadow. It had 100000 miles and I decided to change the timing belt. It did not help. Last week, I had to do the water pump, and while there confirmed timing belt by counting teeth. All is well. Yet, the car has slow acceleration from a dead stop. If you are running along at say 40 mph and mash the pedal into "kickdown" mode she takes right off. But not from a dead stop. It seams to want to think about it.Any ideas?

Regards to all,Bill1997 J30T


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yodawill2000
Posts: 3888
Joined: Thu Mar 24, 2005 4:10 pm
Car: 94 Infiniti J30
Location: Grand Prairie TEXAS

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Sure sounds like the Knock sensor is bad.Pull the codes and report back.Knock Sensor wont light the Check engine light.And is ignored over 3K RPM I believe.How to pull the codes is a sticky on this forum.

Welcome to NICO !!!

jspout
Posts: 44
Joined: Sun Oct 25, 2009 9:19 pm
Car: infiniti j30

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Did you change the knock sensor? Did it fix the issue? I did a diagnostic at Oreillys on my J and it pulled up the knock sensor P0325. I checked at a shop and they quoted a 7 1/2 hour job. Oh boy. I have'nt noticed any problems, but the check eng light is on. I am tempted to change all the sensors, tired of chasing shadows. Lance

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yodawill2000
Posts: 3888
Joined: Thu Mar 24, 2005 4:10 pm
Car: 94 Infiniti J30
Location: Grand Prairie TEXAS

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Knock sensor wont cause a Check engine light jspout.What other codes did they pull?

The labor to replace the knock sensor in its original position is a BEAST !!Many that have done it swear they will never do it again.


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